Presentations -

Enhancing Magnetic and Ferroelectric Properties of BiFeO3-Based Multiferroic Thin Films via B-Site Dual Substitution of Ni and Co along with Oxygen-Rich Target for Memory Device Applications

Swati Sucharita Das, Yuta Suzuki, Soumyaranjan Ratha, Genta Egawa and Satoru Yoshimura

MMM-Intermag Joint Conference 2025  (New Orleans, USA)  2025.01  -  2025.01  MMM-Intermag Joint Conference 2025

Fabrication of metallic ferromagnetic / oxide multiferroic - multilayer structure for electric field control of giant magneto-optical Kerr effect

2024.12  -  2024.12 

Fabrication of perpendicular magnetic thin films with low saturation magnetic field and high saturation magnetization for realizing a new magnetic field sensor with high sensitivity and high signal output

2024.12  -  2024.12 

Development of High Performance BiFeO3-based Multiferroic Thin FIlms for Magnetic Device Applications

Soumyaranjan Ratha, Genta Egawa, and Satoru Yoshimura

15th Indian scientist association in Japan (ISAJ) Symposium  (Embassy of India, Japan)  2024.10  -  2024.10  The Ambassador of India, Japan

Effect of Ni and Co dual substitution and oxygen-rich targets on the magnetic and ferroelectric properties of BiFeO3-based multiferroic thin films for magnetic memory devices application

Swati Sucharita Das, Yuta Suzuki, Soumyaranjan Ratha, Genta Egawa, and Satoru Yoshimura

The IEEE Around-The-Clock Around-The-Globe Magnetics Conference 2022 (AtC-AtG 2022)  (オンライン開催)  2024.10  -  2024.10  IEEE

Identify of the magnetic properties of a tip suitable for high-sensitivity domain observation of various BiFeO3-based multiferroic thin films - Creating a quick reference map for optimal tip properties -

2024.09  -  2024.09 

Enhancing magnetic properties in BiFeO3 based thin films and exploring optimal etching condition to minimize magnetic damage

Soumyaranjan Ratha, Genta Egawa, and Satoru Yoshimura

INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN ADVANCED MAGNETISM  (北海道大学)  2024.08  -  2024.08  New Frontiers in Advanced Magnetism 2024

Fabrication of high-quality α"-Fe16N2 thin film with high saturation magnetization using pulsed DC reactive sputtering method

2024.06  -  2024.06 

Enhancing Perpendicular Magnetic Anisotropy in BiFeO3-based Multiferroic Thin Films via Dual B-Site Substitution Ni and Co

Swati Sucharita Das, Soumyaranjan Ratha, Genta Egawa, Satoru Yoshimura

応用物理学会 第71回春季学術講演会  (東京都市大学 世田谷キャンパス)  2024.03  -  2024.03  応用物理学会

Effect of Lanthanide Materials for A-site Substitution in BiFeO3-based Thin Films on Magnetic Properties and Ferroelectric Properties

Soumyaranjan Ratha, Genta Egawa, Satoru Yoshimura

応用物理学会 第71回春季学術講演会  (東京都市大学 世田谷キャンパス)  2024.03  -  2024.03  応用物理学会

Optimization of reactive ion etching conditions for micro-fabrication with low damage in BiFeO3-based multiferroic thin film

2024.03  -  2024.03 

Fabrication of high-quality oxide thin films with ferromagnetic and ferroelectric properties by pulsed DC reactive sputtering method (Invited talk)

 [Invited]

2024.03  -  2024.03 

Optimizing the Etching Conditions with Minimal Damage and High Rate for High Functional Magnetic Nano Device Application in BiFeO3-based Multiferroic Thin Films

Soumyaranjan Ratha, Genta Egawa, and Satoru Yoshimura

The 14th APCTP Workshop on Multiferroics  (東京大学)  2023.10  -  2023.10  Asia Pacific Center for Theoretical Physics (APCTP)

Optimizing the Reactive Ion Etching Conditions with Minimal Damage for High Functional Magnetic Nano Device Application in BiFeO3-based Multiferroic Thin Films

2023.09  -  2023.09 

Minimizing Magnetic Damage During Microfabrication through Optimal Etching Conditions in BiFeO3-based Thin Films

Soumyaranjan Ratha, Genta Egawa, and Satoru Yoshimura

The IEEE Around-The-Clock Around-The-Globe Magnetics Conference 2023 (AtC-AtG 2023)  (オンライン開催)  2023.09  -  2023.09  IEEE

Investigation of Etching Resistance and Suitable Etching Conditions for Microfabrication in BFO-based Multiferroic Thin Films toward Magnetic Nano Device Applications

Soumyaranjan Ratha, Genta Egawa, and Satoru Yoshimura

20th International Conference on Global Research and Education (Inter-Academia 2023)  (浜松＋オンラインのハイブリッド開催)  2023.09  -  2023.09  Shizuoka University

Development of BiFeO3 based multiferroic thin film materials with large saturation magnetization and perpendicular magnetic anisotropy – Effect of Co and/or Ni substitution against Fe on magnetic properties –

2023.09  -  2023.09 

Fabrication of Conductive Magnetic Probes with Various Magnetic Properties and Highly Sensitive Domain Observation of BiFeO3-Based Thin Films by Magnetic and Electrostatic Force Microscopy

2023.08  -  2023.08 

Fabrication of High Quality α"-Fe16N2 Thin Film by pulsed DC reactive sputtering method for Application to Next Generation Magnetic Recording Media

2023.08  -  2023.08 

Fabrication of oxide/nitride matrix thin films by pulsed DC reactive sputtering method for realization of Co-based superparamagnetic granular thin films with high magnetization

2023.06  -  2023.06 

Effects of substituted elements and amounts of B-site on ferromagnetic and ferroelectric properties of (Bi,La)(FeyM1-y)O3 (M=Ni or Co or (Ni,Co)) ferromagnetic and ferroelectric thin films

2023.06  -  2023.06 

Development of BiFeO3-based Multiferroic Thin Films with Large Magneto-Optical Kerr Effect for Spatial Light Modulator Driven by Electric Field (Invited)

Satoru Yoshimura  [Invited]

The 10th Annual Congress of Nano Science and Technology-2023 (Nano S&T 2023)  (Osaka, Japan)  2023.05  -  2023.05  Cluster Meeting of Gala Technology

Development of BiFeO3-Based Multiferroic Thin Films with Excellent Magnetic Properties and Investigation of Their Etching Resistance for Magnetic Nano Device Applications

Soumyaranjan Ratha, Riku Suzuki, Daichi Yamamoto, Kotaro Takeda, Munusamy Kuppan, Genta Egawa, Satoru Yoshimura

Intermag 2023  (Sendai, Japan)  2023.05  -  2023.05  INTERMAG 2023

Effect of B-site Substitution Element and Substitution Amount on Magnetic Properties in (Bi,La)(Fe1-yMy)O3 (M = Co, Ni) Ferromagnetic and Ferroelectric Thin Films

Yuta Suzuki, Takumi Ozeki, Genta Egawa, and Satoru Yoshimura

Intermag 2023  (Sendai, Japan)  2023.05  -  2023.05  INTERMAG 2023

Magnetization reversal of highly functional magnetic film dot on BiFeO3 based multiferroic thin film by applying electric field for development of high-performance magnetic devices with low power consumption (Keynote)

Satoru Yoshimura  [Invited]

International Conference on Functional Materials for Future Technology (IC-FMFT 2023)  (Vellore+オンラインのハイブリッド開催)  2023.04  -  2023.04  Vellore Institute of Technology

Investigation of Etching Resistance in BiFeO3-based Multiferroic Thin Films with Excellent Magnetic Properties for Magnetic Nano Device Applications

Soumyaranjan Ratha, Riku Suzuki, Daichi Yamamoto, Kotaro Takeda, Munusamy Kuppan, Genta Egawa, Satoru Yoshimura

7th International Conference on Nanoscience and Nanotechnology (ICONN-2023)  (オンライン開催)  2023.03  -  2023.03  Department of Physics and Nanotechnology, SRMIST, SRM Nagar, Kattankulathur

Effect of B-site substitution element and substitution amount on magnetic properties in (Bi,La)(Fe1-yMy)O3 (M = Co, Ni) ferromagnetic and ferroelectric thin films

2023.03  -  2023.03 

Development of BiFeO3-Based Multiferroic Thin Films with Excellent Magnetic Properties and Investigation of Their Etching Resistance for Magnetic Nano Device Applications

S. Ratha, R. Suzuki, K. Takeda, D. Yamamoto, M. Kuppan, G. Egawa, S. Yoshimura

応用物理学会 第70回春季学術講演会  (上智大学 四ツ谷キャンパス)  2023.03  -  2023.03  応用物理学会

Effect of laser-assisted heating and post annealing on the crystal structure and magnetic / electric properties of BiFeO3 based multiferroic thin films

2023.01  -  2023.01 

The Effect of Lanthanoids (La, Nd, Sm, Eu, Gd, Dy, Er) Substitution against Bi on Perpendicular Anisotropy and Curie Temperature for Magnetic Device Applications in Multiferroic BiFeO3 Based Thin Films

Soumyaranjan Ratha, Takumi Ozeki, Riku Suzuki, Daichi Yamamoto, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

National Conference on Advances in Condensed Matter Physics (ACMP-2020)  (Govt.(Autonomous) Collegeとオンラインのハイブリッド開催)  2022.12  -  2022.12  Post-Graduate Dept. of Physics, Govt.(Autonomous) College

Development of High-Functional Multiferroic Thin Films for Application to Low Power Consumption Magnetic Devices (Keynote)

Satoru Yoshimura  [Invited]

9th Malaysia-Japan Photovoltaics Workshop (MJPVW 2022)  (オンライン開催)  2022.12  -  2022.12  Universiti Kebangsaan Malaysia

Fabrication of (Bi,Eu)(Fe,Co)O3 Multiferroic Thin Films with High Saturation Magnetization and Curie Temperature for Magnetic Device Applications

Soumyaranjan Ratha, Daichi Yamamoto, Munusamy Kuppan, Genta Egawa, Satoru Yoshimura

The International Conclave on Materials, Energy & Climate (ICMEC)  (オンライン開催)  2022.12  -  2022.12  International Association of Advanced Materials

Improvement of Magnetic Properties in BiFeO3-based Multiferroic Thin Films for Devices Applications with Low Energy Consumptions

Soumyaranjan Ratha, Takumi Ozeki, Riku Suzuki, Daichi Yamamoto, Munusamy Kuppan, Genta Egawa, Satoru Yoshimura

Advanced Materials for Strategic Application and Sustainable Future (AMSAS - 2022)  (オンライン開催)  2022.12  -  2022.12  KPR Institute of Engineering and Technology (KPRIET)

Fabrication of BiFeO3-based Multiferroic Thin Films with Suitable Magnetic Properties for Various Magnetic Devices with Low Power Consumption

Soumyaranjan Ratha, Riku Suzuki, Takumi Ozeki, Daichi Yamamoto, Kotaro Takeda, Munusamy Kuppan, Genta Egawa, Satoru Yoshimura

2nd International Conference on Advanced Materials and Nanotechnology (ICAMN-2022)  (オンライン開催)  2022.12  -  2022.12  Department of Physics and Materials Science and Engineering Jaypee Institute of Information Technology, Noida

Development of Multiferroic BiFeO3 based Thin Films with Excellent Magnetic Properties for Reduction of Energy Consumption in Magnetic Devices

Soumyaranjan Ratha, Takumi Ozeki, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

13th Indian scientist association in Japan (ISAJ) Symposium  (Embassy of India, Japan)  2022.11  -  2022.11  The Ambassador of India, Japan

Improvement in the saturation magnetization and Curie temperature of Bismuth Ferrite multiferroic thin films by substituting Europium and Cobalt

Soumyaranjan Ratha, Daichi Yamamoto, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

3rd National Conference on Materials and Devices (3rd NCMD-2022)  (Teerthanker Mahaveer Universityとオンラインのハイブリッド開催)  2022.11  -  2022.11  Department of Physics, Faculty of Engineering & Computing Sciences, Teerthanker Mahaveer University

Observation of clear magnetization and polarization reversal by local electric field in BiFeO3-based multiferroic thin film with using metallic MFM tip with optimized magnetization

Satoru Yoshimura and Genta Egawa

2022 IET International Conference on Engineering Technologies and Applications  (ハイブリッド（台湾国立彰化師範大学・オンライン）)  2022.10  -  2022.10  The Institution of Engineering and Technology (IET)

Influence of Lanthanides and Cobalt substituent in the magnetic properties of Bismuth Ferrite multiferroic thin films

Soumyaranjan Ratha, Takumi Ozeki, Daichi Yamamoto, Kotaro Takeda, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

The 12th Annual Symposium on Magnetics 2022  (オンライン開催)  2022.09  -  2022.09  IEEE Magnetics Society, Singapore Chapter

Effect of B-site substituting elements on magnetic anisotropy in (Bi,La)(Fe,M)O3 multiferroic thin films

2022.09  -  2022.09 

Effect of laser-assisted heating / annealing on various magnetic properties of multiferroic BiFeO3-based thin films

2022.09  -  2022.09 

Effect of Lanthanoids substitution against Bi on various magnetic properties of multiferroic (Bi,L)(Fe,Co)O3 (L: Lanthanoids) thin films

2022.09  -  2022.09 

Enhancement of Magnetic Properties by Lanthanides substitution in (Bi,L)(Fe,Co)O3 (L = La, Nd, Sm, Gd, Dy, Er) Multiferroic Thin films

Soumyaranjan Ratha, Daichi Yamamoto, Kotaro Takeda, Yuuta Suzuki, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

National Conference on Functional Materials and its Application Aspects (NCFMAA-2022)  (オンライン開催)  2022.08  -  2022.08  Department of Physics, Institute of Science and Humanities, Saveetha School of Engineering, SIMATS

Magnetic properties of multiferroic Bismuth Ferrite based thin films with Lanthanides and Cobalt doping fabricated by pulsed DC reactive sputtering method

Soumyaranjan Ratha, Daichi Yamamoto, Kotaro Takeda, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

International Online Conference on Nano Materials (ICN 2022)  (オンライン開催)  2022.08  -  2022.08  Mahatma Gandhi University

Enhancement of Magnetic Properties by Lanthanides substitution in (Bi,L)(Fe,Co)O3 (L = La, Nd, Sm, Gd, Dy, Er) Multiferroic Thin films

Soumyaranjan Ratha, Kotaro Takeda, Daichi Yamamoto, Genta Egawa, and Satoru Yoshimura

The IEEE Around-The-Clock Around-The-Globe Magnetics Conference 2022 (AtC-AtG 2022)  (オンライン開催)  2022.08  -  2022.08  IEEE

Basic study of electric field driven magneto-optical light modulator with ferromagnetic and ferroelectric thin films (Invited talk)

 [Invited]

2022.08  -  2022.08 

Effect of Co substitution concentration against Fe on magnetic properties in (Bi,La)(Fe1-yCoy)O3 ferromagnetic and ferroelectric thin films and consideration on the origin of the magnetic properties

2022.08  -  2022.08 

(Bi1-xLx)(Fe,Co)O3 (L= La, Nd, Sm, Gd, Dy, Er) 強磁性・強誘電性薄膜の 磁気特性に及ぼすBiに対する置換元素の影響

Soumyaranjan Ratha，武田航太朗，山本大地，江川元太，吉村哲

映像情報メディア学会年次大会2022  (オンライン開催)  2022.08  -  2022.08  映像情報メディア学会

Effect of laser-assisted heating / annealing on magnetic properties in BiFeO3-based ferromagnetic and ferroelectric thin films

2022.08  -  2022.08 

Effect of substitution of A-site by alkaline earth metals and laser-assisted heating / annealing on BiFeO3 thin films for induce of ferromagnetism

2022.06  -  2022.06 

Effect of Co substitution concentration on various magnetic properties of (Bi1-xBax)(Fe1-yCoy)O3 multiferroic thin films and consideration on the origin of those magnetic properties

2022.06  -  2022.06 

Enhancement of magnetic properties by Lanthanides (L) and Co doping in Bismuth Ferrite thin films fabricated by pulsed DC reactive sputtering method

S. Ratha, D. Yamamoto, K. Takeda, M. Kuppan, G. Egawa, and S. Yoshimura

Indo-Japan Workshop on interface phenomena for spintronics (IJW-IPS 2022)  (オンライン開催)  2022.03  -  2022.03  National Institute of Science Education and Research (NISER)

Magnetic properties of (Bi,L)(Fe1-xCox)O3 (L = La, Nd, Sm, Gd, Dy) multiferroic thin films and consideration on the origin of their magnetic properties

S. Ratha, K. Takeda, D. Yamamoto, M. Kuppan, G. Egawa, S. Yoshimura

応用物理学会 第69回春季学術講演会  (青山学院大学 相模原キャンパス)  2022.03  -  2022.03  応用物理学会

Development of high-functional multiferroic thin films and their device application

Satoru Yoshimura  [Invited]

Virtual Seminar Series on Functional Materials 2022  2022.01  -  2022.01  Centre for functional Materials, VIT University, India

Effect of laser-assisted heating and post annealing on the crystal structure and magnetic properties of (Bi,A)FeO3 (A=Ca,Sr,Ba) thin films

2022.01  -  2022.01 

Observation of domain structure of ferromagnetic / ferroelectric thin films with high sensitivity by using the conducting tips with CoCrPt-based films with controllable magnetic properties

2022.01  -  2022.01 

Development of high quality BiFeO3-based multiferroic thin films with excellent magnetic properties for realization of high performance and low power consumption magnetic devices (Invited)

Satoru Yoshimura  [Invited]

2021 Global Research Efforts on Energy and Nanomaterials (GREEN 2021)  (Online)  2021.12  -  2021.12 

Effect of Co substitution concentration on various magnetic properties of (Bi1-xBax)(Fe1-yCoy)O3 ferromagnetic and ferroelectric thin films

2021.12  -  2021.12 

Effect of Lanthanoid (L = La, Nd, Sm, Gd, Dy) substitution on various magnetic properties of (Bi,L)(Fe,Co)O3 ferromagnetic and ferroelectric thin films

Soumyaranjan Ratha, Kotaro Takeda, Daichi Yamamoto, Munusamy Kuppan, Genta Egawa, and Satoru Yoshimura

2021 Global Research Efforts on Energy and Nanomaterials (GREEN 2021)  (Online)  2021.12  -  2021.12 

Investigations on Spintronic RFeO3 Crystals Grown by Optical Floating Zone Technique (Invited)

P. Ramesh Babu, S. Kalainathan, and Satoru Yoshimura  [Invited]

The Ninth International Conference on Materials Engineering for Resources (ICMR2021 AKITA)  (オンライン開催)  2021.10  -  2021.10  日本素材物性学会

Development of (Bi0.5L0.5)(Fe0.75Co0.25)O3 (L = La,Nd,Sm,Gd,Dy) films with excellent magnetic properties for device application

K. Takeda, D. Yamamoto, S. Ratha, M. Kuppan, G. Egawa, and S. Yoshimura

The Ninth International Conference on Materials Engineering for Resources (ICMR2021 AKITA)  (オンライン開催)  2021.10  -  2021.10  日本素材物性学会

Development of high quality BiFeO3-based ferromagnetic and ferroelectric thin films with excellent magnetic properties for application to high performance and low power consumption magnetic devices (Invited)

 [Invited]

2021.10  -  2021.10 

Development of BiFeO3 based multiferroic thin film materials with large saturation magnetization and perpendicular magnetic anisotropy – Effect of substitution element against Bi on magnetic properties –

2021.09  -  2021.09 

Fabrication of CoCrPt-based magnetic / electric force microscope tip and observation of domain structure of ferromagnetic / ferroelectric thin films using the tip

2021.09  -  2021.09 

Development of BiFeO3 based multiferroic thin film materials with large saturation magnetization and perpendicular magnetic anisotropy – Effect of substitution element against Fe on magnetic properties –

2021.09  -  2021.09 

Electronics and electric materials - Fabrication of BiFeO3 based multiferroic films for high performance magnetic devices driven by electric field (Invited)

Satoru Yoshimura  [Invited]

Akita-Freiberg university partnership – Commemorating Prof. Curt Adolph Netto and exploring the future  (オンライン開催)  2021.06  -  2021.06  秋田大学・フライベルク工科大学

Dependence of perpendicular magnetic anisotropy and magnetic Kerr effect in (Bi,La)(Fe1-xCox)O3 multiferroic thin films on Co substitution concentration against Fe

2021.06  -  2021.06 

Measurement of dynamic magnetization reversal of magnetic film fabricated onto BiFeO3 based multiferroic film by applying electric field and development of the multiferroic film with high magnetization for this method (Keynote)

Satoru Yoshimura  [Invited]

International Conference on Science and Applied Science 2021  (オンライン開催)  2021.04  -  2021.04  Sebelas Maret University

Magneto-optical Kerr effect of (Bi0.5A0.5)(Fe1-XCoX)O3 (A : Lanthanoid, X : 0 - 0.3) films

S. Yoshimura, D. Yamamoto, K. Takeda, T Ozeki, G. Egawa

2021.01  -  2021.01 

Fabrication of Co-Al2O3 superparamagnetic granular films with high magnetization

Takumi Kobayashi, Akito Nakada, and Satoru Yoshimura

2020.11  -  2020.11 

Development of BiFeO3 based ferromagnetic/ferroelectric thin film materials with large magnetic Kerr effect for application to electric field driven magneto-optical light modulator

Satoru Yoshimura, Daich Yamamoto, Kotaro Takeda, Takumi Ozeki, and Genta Egawa

2020.10  -  2020.10 

Development of high-functional and high-quality multiferroic thin films for application of high performance magnetic devices driven by electric field (Keynote)

Satoru Yoshimura  [Invited]

Virtual International Conference on Photovoltaic and Material Science  (オンライン開催)  2020.06  -  2020.06  CGC, VIT

Development of novel magnetic recording device driven by electric field using BiFeO3-based ferromagnetic and ferroelectric thin films (Keynote)

Satoru Yoshimura  [Invited]

2019 Global Research Efforts on Energy and Nanomaterials  (Taipei, Taiwan)  2019.12  -  2019.12  GREEN 2019

Magnetization reversal of [Co/Pd] perpendicular magnetic film fabricated onto (Bi,La)(Fe,Co)O3 multiferroic film by applying electric field to multiferroic / magnetic laminated film

S. Yoshimura, N. Oshita, M. Kuppan

64th Annual Conference on Magnetism and Magnetic Materials  (Las Vegas, USA)  2019.11  -  2019.11  MMM2019

Trial to application of BiFeO3-based multiferroic films to new magnetic memory devices - Mamaterial research, fabrication of high-qualified films, and functional verification - (Keynote)

S.Yoshimura, M. Kuppan,  [Invited]

ICSET 2019  (Tamil Nadu, India)  2019.10  -  2019.10  Vellore Institute of Technology

Attempt of application to memory or display devices in BiFeO3-based multiferroic films - Fabrication of high-qualified films, material research, and functional verification - (Invited)

S.Yoshimura, M. Kuppan,  [Invited]

Indeiana Summit 2019  (Indianapolis,USA)  2019.10  -  2019.10  Vellore Institute of Technology

Properties of magnetic Kerr effect of (Bi1-xLax)(Fe0.75Co0.25)O3 multiferroic thin films with perpendicular anisotropy fabricated by a pulsed DC reactive sputtering technique

M. Kuppan, S. Yoshimura

International Workshop on Materials Technology and Applications 2018  (Tamil, Nadu, India)  2018.10  -  2018.10  CGC, VIT

High Functional Multiferroic Thin Films for Novel Magnetic Devices with System of Magnetization Reversal by Electric Field (Invited)

S. Yoshimura and M. Kuppan  [Invited]

International Workshop on Materials Technology and Applications 2018  (Tamil Nadu, India)  2018.10  -  2018.10  CGC, VIT

Giant magnetic Kerr effect of (Bi1-xLax)(Fe0.75Co0.25)O3 multiferroic thin films with perpendicular magnetic anisotropy fabricated by a pulsed DC reactive sputtering

M. Kuppan, S. Yoshimura

The 21st International Conference on Magnetism  (San Francisco, USA)  2018.07  -  2018.07  ICM2018

Fabrication of highly qualified (Bi1-xBax)FeO3 multiferroic thin films by using a pulsed DC reactive sputtering method and demonstration of magnetization reversal by electric field

S. Yoshimura and M. Kuppan

The 21st International Conference on Magnetism  (San Francisco, CA, USA)  2018.07  -  2018.07  ICM2018

High Functional Multiferroic Thin Films for Application to Novel Magnetic Devices with System of Magnetization Reversal by Electric Field (invited)

Satoru Yoshimura  [Invited]

Solar Quest Seminar 2018  (東京大学、東京)  2018.05  -  2018.05 

Fabrication of highly qualified (Bi1-xBax)FeO3 multiferroic thin films by using a pulsed DC reactive sputtering technique and its magnetic and dielectric properties

Satoru Yoshimura

4th International Symposium on Advanced Magnetic Materials and Applications  (Phu Quoc, Vietnam)  2017.12  -  2017.12  ISAMMA2017

Fabrication of e-Fe2O3 multiferroic thin films with high coercivity and magnetization for electric-field writing magnetic recording

Satoru Yoshimura

ICMR2017  (Akita, Japan)  2017.11  -  2017.11  ICMR

Fabrication of (Bi1-xLax)(Fe1-yCoy)O3 multiferroic thin films by using a pulsed DC reactive sputtering method and its magnetic properties

M. Kuppan、吉村哲、S. Kalainathan

スピニクス特別研究会  (秋田大学、秋田)  2017.11  -  2017.11 

High Functional Multiferroic Thin Films for Application to Novel Magnetic Recording Devices with Electric-Field Writing Method (invited)

Satoru Yoshimura  [Invited]

ICAMST2017  (Vellore, India)  2017.10  -  2017.10  VIT University

Voltage control of magnetization direction of multiferroic thin films for application to novel magnetic recording devices with electric-field writing method

Satoru Yoshimura

The 28th Magnetic Recording Conference  (Tsukuba, Japan)  2017.08  -  2017.08  TMRC2017

Voltage control of magnetization direction of multiferroic thin films for application to novel magnetic recording devices with electric-field writing method (invited)

Satoru Yoshimura  [Invited]

International Conference on Materials Processing and Applications  (Tamil Nadu, India)  2016.12  -  2016.12  Vellore Institute of Technology

Fabrication of multiferroic (Bi1-xBax)FeO3 thin films with (001) orientation for novel perpendicular magnetic recording media by electric-field writing

S. Yoshimura, Y. Sugawara, J. Lu, G. Egawa, Y. Kinoshita, and H. Saito

The 2015 IEEE International Magnetics Conference  (Beijing, China)  2015.05  -  2015.05  INTERMAG 2015

Low-temperature fabrication of BiFeO3 based multiferroic thin films with (111) orientation and its local magnetization reversal by electric field from conductive tip (invited)

S. Yoshimura, Y. Sugawara, J. Lu, G. Egawa, Y. Kinoshita, and H. Saito  [Invited]

2nd ICAMPM Conference  (Shanghai, China)  2013.12  -  2013.12 

Low-temperature fabrication of BiFeO3 based multiferroic thin films with (111) orientation and formation of composite ferromagnetic and ferroelectric domain structure by local electric field

S. Yoshimura, Y. Sugawara, J. Lu, G. Egawa, Y. Kinoshita, and H. Saito

57th Annual Conference on Magnetism and Magnetic Materials  (Denver, U.S.A.)  2013.11  -  2013.11  MMM2013

Low-temperature fabrication of BiFeO3 based multiferroic thin films with (111) orientation by sputtering deposition process with VHF plasma irradiation

S. Yoshimura, Y. Sugawara, J. Lu, G. Egawa, Y. Kinoshita, and H. Saito

The 3rd International Symposium on Advanced Magnetic Materials and Applications (ISAMMA 2013)  (Taichung, Taiwan)  2013.07  -  2013.07  ISAMMA2013

AC magnetic field imaging without image distortion for current perpendicular magnetic writing head by using frequency-modulated magnetic force microscopy (FM-MFM) with cone shaped FePt tip

S. Yoshimura, G. Egawa, K. Hatakeyama, and H. Saito

The 2012 IEEE International Magnetics Conference  (Vancouver, Canada)  2012.05  -  2012.05  INTERMAG 2012

Fabrication of (001) oriented TMR film with highly ordered L10-Fe(Pd,Pt) alloy films by using a very thin Fe underlayer

S. Yoshimura, S. Omiya, G. Egawa, and H. Saito

The 2011 IEEE International Magnetics Conference  (Taipei, Taiwan)  2011.04  -  2011.04  INTERMAG 2011

Acceleration of L21-ordering transformation of a new Fe2(Mn,Cr)Si Heusler-alloy film by VHF plasma irradiation process during RF sputter deposition

S. Yoshimura, H. Kobayashi, G. Egawa, H. Saito, and S. Ishida

55th Annual Conference on Magnetism and Magnetic Materials  (Atlanta, U.S.A.)  2010.11  -  2010.11  MMM2010

MFM analysis of magnetic inhomogeneity in recorded area for perpendicular magnetic recording media by simultaneous imaging of perpendicular and in-plane magnetic field gradient

S. Yoshimura, G. Egawa, T. Miyazawa, Z. Li, H. Saito, J. Bai, and G. Li

The 2nd International Symposium on Advanced Magnetic Materials and Applications  (Sendai, Japan)  2010.07  -  2010.07  ISAMMA2010

Reduction of L21 ordering temperature for Fe2(Mn,Cr)Si alloy films by VHF plasma irradiation process during RF sputter deposition

S. Yoshimura, H. Kobayashi, G. Egawa, H. Saito, and J. Bai

The 2nd International Symposium on Advanced Magnetic Materials and Applications  (Sendai, Japan)  2010.07  -  2010.07  ISAMMA2010

Perpendicular magnetic anisotropy and crystalline structure of L10-Fe(Pd,Pt) thin films for high performance magnetic recording devices

S. Yoshimura, S. Omiya, G. Egawa, and H. Saito

The 11th Joint MMM-Intermag Conference  (Washington, DC, U.S.A.)  2010.01  -  2010.01 

Nano-scale magnetic domain structure observation in La0.7Sr0.3MnO3 poly- and single-crystalline Films using magnetic force microscopy

S. Yoshimura, G. Egawa, F. Kato, H. Asano, and H. Saito

The 17th International Conference on Magnetism  (Berlin, Germany)  2009.07  -  2009.07  ICM2009

Crystalline structure and magnetic property of Fe2CrSi Heusler alloy films - New ferromagnetic material for high performance MRAM -

S. Yoshimura, H. Asano, Y. Nakamura, K. Yamaji, Y. Takeda, M. Matsui, S. Ishida, Y. Nozaki, and K. Matsuyama

52nd Annual Conference on Magnetism and Magnetic Materials (MMM07)  (Tampa, U.S.A.)  2007.11  -  2007.11 

Effect of buffer layer and seedlayer materials on control of crystallographic orientation of Co2MnGe layer onto a thermally oxidized Si wafer

S. Yoshimura, M. Takano, Y. Takeda, H. Asano, and M. Matsui

The 16th International Conference on Magnetism (ICM2006)  (Kyoto, Japan)  2006.08  -  2006.08 

Oxidation Process of Metal Films by Using High Concentration Ozone for Magnetic Tunnel Junctions

S. Yoshimura, Y. Narisawa, M. Tsunoda, and M. Takahashi

The 2005 IEEE International Magnetics Conference (INTERMAG Asia 2005)  (Nagoya, Japan)  2005.04  -  2005.04 

Surface Flattening Processes of Metal Layer and Their Effect on Transport Properties of Magnetic Tunnel Junctions with Al-N Barrier

S. Yoshimura, T. Nozawa, T. Shoyama, M. Tsunoda, and M. Takahashi

49th Annual Conference on Magnetism and Magnetic Materials (MMM 04)  (Jacksonville, U.S.A.)  2004.11  -  2004.11 

Nitridation process of Al layer by microwave-excited plasma and large magnetoresistance in Co-Fe/Al-N/Co-Fe tunnel junctions

S. Yoshimura, T. Shoyama, T. Nozawa, M. Tsunoda, and M. Takahashi

The 9th Joint MMM-Intermag Conference  (Anaheim, U.S.A.)  2004.01  -  2004.01 

Local current distribution of ferromagnetic tunnel junction fabricated with microwave excited plasma

T. S. Yoon, ゜S. Yoshimura, T. Shoyama, T. Nozawa, M. Tsunoda, M. Takahashi, and C. O. Kim

International Symposium on Magnetic Materials and Applications (2003 SOMMA)  (Daejeon, Korea)  2003.12  -  2003.12 

Effect of Naturally Adsorbed Gas on Substrate Surface on the Growth of Very Thin WCr Seedlayer

S. Yoshimura, D. D. Djayaprawira, Y. Takakuwa, and M. Takahashi

The 2003 IEEE International Magnetics Conference (INTERMAG 2003)  (Boston, U.S.A.)  2003.04  -  2003.04 

Effect of Oxidation Process on Grain Size Reduction for Longitudinal Media Using Ni-baced Amorphous Seedlayer

M. Mikami, D. D. Djayaprawira, ゜S. Yoshimura, and M. Takahashi

The 2003 IEEE International Magnetics Conference (INTERMAG 2003)  (Boston, U.S.A.)  2003.04  -  2003.04 

The Effect of Very Thin Cr-based Seedlayer Material with Different Affinity for Oxygen on Thin Film Media Microstructure and Recording Properties

S. Yoshimura, D. D. Djayaprawira, Y. Takakuwa, and M. Takahashi

47th Annual Conference on Magnetism and Magnetic Materials (MMM 02)  (Tampa, U.S.A.)  2002.11  -  2002.11 

Dependence of thin film media microstructure and recording properties on composition of very thin Cr-based seedlayer

S. Yoshimura, D. D. Djayaprawira, M. Mikami, Y. Takakuwa, and M. Takahashi

The 2002 IEEE International Magnetics Conference (INTERMAG Europe 2002)  (Amsterdam, Netherlands)  2002.05  -  2002.05 

Magnetic Grain Size Reduction by Using Oxygen Exposure Process onto Very Thin WCr Seedlayer in Longitudinal Media

S. Yoshimura, D. D. Djayaprawira, M. Mikami, M. Takahashi, K. Komiyama, A. Horii, A. Ohno, and S. Katayama

46th Annual Conference on Magnetism and Magnetic Materials (MMM 01)  (Seattle, U.S.A.)  2001.11  -  2001.11 

Novel Sputtering Process to Reduce The Grain Size and Its Distribution In Co-based Longitudinal Thin Film Media (New Seedlayer and High Kugrain Materials)

M. Takahashi, H. Shoji, D. D. Djayaprawira, and S. Yoshimura

The 2000 IEEE International Magnetics Conference (INTERMAG 2000)  (Toronto, Canada)  2000.04  -  2000.04 

Media Noise Reduction In Co-based Longitudinal Media with New Co co-precipitated NiP/Al Substrate

S. Yoshimura, D. D. Djayaprawira, Tham Kim Kong, Y. Masuda, H. Shoji, and M. Takahashi

The 2000 IEEE International Magnetics Conference (INTERMAG 2000)  (Toronto, Canada)  2000.04  -  2000.04 

Grain Size Reduction by Utilizing Very Thin CrW Seedlayer and Dry-Etching Process in CoCrTaNiPt Longitudinal Media

S. Yoshimura, D. D. Djayaprawira, Tham Kim Kong, Y. Masuda, H. Shoji, and M. Takahashi

44th Annual Conference on Magnetism and Magnetic Materials (MMM 99)  (San Jose, U.S.A.)  1999.11  -  1999.11 

Magnetic and Structural Properties of CoCrTaNiPt Longitudinal Thin Film Media

S. Yoshimura, D. D. Djayaprawira, H. Shoji, and M. Takahashi

44th Annual Conference on Magnetism and Magnetic Materials (MMM 99)  (San Jose, U.S.A.)  1999.11  -  1999.11 

Effect of Pt on the intergranular exchange coupling in CoCrTaPt thin film media prepared under ultra clean sputtering process

M. Takahashi, H. Hara, A. Kikuchi, S. Yoshimura, and H. Shoji

4th International Symposium on Physics of Magnetic Materials (ISPMM1998)  (Sendai, Japan)  1999.07  -  1999.07  ISPMM