SEPEHRI Navid 世伯理那仁 (Ｓ．ＡｍｉｎＨｏｓｓｅｉｎ)

… Alternative Names

S.AminHossein

SEPEHRI-AMIN H. 世伯理那仁

Sepehri-Amin Hossein S.Amin Hossein

Less

Researcher Number	10621758
Other IDs
Affiliation (Current)	2025: 国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究センター, グループリーダー
Affiliation (based on the past Project Information) *help	2023 – 2025: 国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究センター, グループリーダー 2018 – 2021: 国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点, 主幹研究員 2018: 国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点, 主任研究員 2017: 国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点等, 主任研究員
Review Section/Research Field	Principal Investigator Basic Section 26010:Metallic material properties-related / Basic Section 29010:Applied physical properties-related / Physical properties of metals/Metal-base materials Except Principal Investigator Basic Section 21050:Electric and electronic materials-related / Basic Section 21060:Electron device and electronic equipment-related
Keywords	Principal Investigator device analysis / Micromagnetic simulation / spin-torque-oscillator / Microstructure / spin accumulation / spin polarization / Spin torque oscillator / machine learning / permanent magnets / SmFe12 … More / Data science / Phase diagram / microstructure / coercivity / SmFe12-based magnets / Media / Spin Torque Oscillator / granular media / Micromagnetic Simulation / spin torque oscillator / magnetic recording / Recording media / Magnetic Recording / magnetic-recording / Magnetism / Magnetic recording / Microstructure analysis / Simulations / MAMR … More Except Principal Investigator スピントロニクス / 磁気トンネル接合 / 反強磁性体 / スキルミオン / 不揮発性メモリ Less

Materials research for high-speed and low-power-consumption antiferromagnetic spintronics devices
- Principal Investigator
  
  竹内祐太朗
- Project Period (FY)
  2025 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 21050:Electric and electronic materials-related
- Research Institution
  National Institute for Materials Science
磁気スキルミオンを用いた新規機能性デバイスの創出
- Principal Investigator
  
  葛西伸哉
- Project Period (FY)
  2024 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 21060:Electron device and electronic equipment-related
- Research Institution
  National Institute for Materials Science
Development of high-performance SmFe12-based sintered magnets using a unique combinatorial approachPrincipal Investigator
- Principal Investigator
  
  世伯理那仁 (S.AminHossein)
- Project Period (FY)
  2023 – 2026
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 26010:Metallic material properties-related
- Research Institution
  National Institute for Materials Science
Design and development of spin-torque-oscillator and recording media for microwave assisted magnetic recordingPrincipal Investigator
- Principal Investigator
  
  SEPEHRI-AMIN H.
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 29010:Applied physical properties-related
- Research Institution
  National Institute for Materials Science
Design and development of spin-torque-oscillator for microwave assisted magnetic recordingPrincipal Investigator
- Principal Investigator
  
  Sepehri-Amin Hossein
- Project Period (FY)
  2017 – 2018
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Physical properties of metals/Metal-base materials
- Research Institution
  National Institute for Materials Science

All 2024 2023 2022 2021 2019 2018 2017

All Journal Article Presentation

[Journal Article] Micromagnetic simulations of Nd-Fe-B hot-deformed magnets subjected to eutectic grain boundary diffusion process2024
- Author(s)
  Bolyachkin Anton、Dengina Ekaterina、Sepehri-Amin Hossein、Ohkubo Tadakatsu、Hono Kazuhiro
- Journal Title
  
  Scripta Materialia
  
  Volume: 247 Pages: 116095-116095
- DOI
  10.1016/j.scriptamat.2024.116095
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Journal Article] Microstructure and coercivity of Al-diffused Sm(Fe,Co,B)12 film2024
- Author(s)
  Sepehri-Amin H.、Kulesh N.、Mori Y.、Ohkubo T.、Hono K.、Shima T.
- Journal Title
  
  Scripta Materialia
  
  Volume: 242 Pages: 115955-115955
- DOI
  10.1016/j.scriptamat.2023.115955
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Journal Article] Tomography-based digital twin of Nd-Fe-B permanent magnets2024
- Author(s)
  Bolyachkin Anton、Dengina Ekaterina、Kulesh Nikita、Tang Xin、Sepehri-Amin Hossein、Ohkubo Tadakatsu、Hono Kazuhiro
- Journal Title
  
  npj Computational Materials
  
  Volume: 10 Issue: 1
- DOI
  10.1038/s41524-024-01218-5
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Journal Article] High-coercivity SmFe12-based anisotropic sintered magnets by Cu addition2023
- Author(s)
  Srinithi A.K.、Tang Xin、Sepehri-Amin H.、Zhang J.、Ohkubo T.、Hono K.
- Journal Title
  
  Acta Materialia
  
  Volume: 256 Pages: 119111-119111
- DOI
  10.1016/j.actamat.2023.119111
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Journal Article] Exploring secondary phases in the Sm-Fe-V system beneficial for coercivity2023
- Author(s)
  Tozman P.、Sepehri-Amin H.、Abe T.、Hono K.、Takahashi Y.K.
- Journal Title
  
  Acta Materialia
  
  Volume: 258 Pages: 119197-119197
- DOI
  10.1016/j.actamat.2023.119197
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Journal Article] Transmission electron microscopy image based micromagnetic simulations for optimizing nanostructure of FePt-X heat-assisted magnetic recording media2022
- Author(s)
  Bolyachkin A.、Sepehri-Amin H.、Suzuki I.、Tajiri H.、Takahashi Y.K.、Srinivasan K.、Ho H.、Yuan H.、Seki T.、Ajan A.、Hono K.
- Journal Title
  
  Acta Materialia
  
  Volume: 227 Pages: 117744-117744
- DOI
  10.1016/j.actamat.2022.117744
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K05257, KAKENHI-PROJECT-18H03787
[Journal Article] Analysis of an all-in-plane spin-torque oscillator using injection locking to an external microwave magnetic field2021
- Author(s)
  Suto Hirofumi、Sepehri-Amin Hossein、Asam Nagarjuna、Zhou Weinan、Bolyachkin Anton、Takagishi Masayuki、Narita Naoyuki、Tamaru Shingo、Nakatani Tomoya、Sakuraba Yuya
- Journal Title
  
  Applied Physics Express
  
  Volume: 14 Issue: 5 Pages: 053001-053001
- DOI
  10.35848/1882-0786/abf667
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K05257
[Journal Article] Analysis method of a spin-torque oscillator using dc resistance change during injection locking to an external microwave magnetic field2021
- Author(s)
  Asam Nagarjuna、Suto Hirofumi、Tamaru Shingo、Sepehri-Amin Hossein、Bolyachkin Anton、Nakatani Tomoya、Zhou Weinan、Kubota Hitoshi、Sakuraba Yuya
- Journal Title
  
  Applied Physics Letters
  
  Volume: 119 Issue: 14 Pages: 142405-142405
- DOI
  10.1063/5.0058847
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K05257, KAKENHI-PROJECT-17H06152
[Journal Article] Dependence of the Growth Mode in Epitaxial FePt Films on Surface Free Energy2021
- Author(s)
  Suzuki Ippei、Kubo Shoichi、Sepehri-Amin Hosein、Takahashi Yukiko K.
- Journal Title
  
  ACS Applied Materials & Interfaces
  
  Volume: - Issue: 14 Pages: 16620-16627
- DOI
  10.1021/acsami.0c22510
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K05257, KAKENHI-PROJECT-18H03787
[Journal Article] Inducing out-of-plane precession of magnetization for microwave assisted magnetic recording using an oscillating spin polarizer in spin torque oscillator2019
- Author(s)
  W. Zhou, H. Sepehri-Amin, T. Taniguchi, S. Tamaru, Y. sakuraba, S. Kasai, H. Kubota, K. Hono
- Journal Title
  
  Applied Physics Letters
  
  Volume: - Issue: 17 Pages: 172403-172403
- DOI
  10.1063/1.5086476
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14802, KAKENHI-PROJECT-19K05257, KAKENHI-PROJECT-17H06152
[Journal Article] Design of spin-injection-layer in all-in-plane spin-torque-oscillator for microwave assisted magnetic recording2019
- Author(s)
  H.Sepehri-Amin, W.Zhou, S.Bosu, C.Abert, Y.Sakuraba, S.Kasai, D.Suess, K.Hono
- Journal Title
  
  Journal of Magnetism and Magnetic Materials
  
  Volume: 476 Pages: 361-370
- DOI
  10.1016/j.jmmm.2018.12.081
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17H06152, KAKENHI-PROJECT-17K14802
[Journal Article] Magnetic in-plane components of FePt nanogranular film on polycrystalline MgO underlayer for heat-assisted magnetic recording media2019
- Author(s)
  Wang J.、Sepehri-Amin H.、Takahashi Y.K.、Ohkubo T.、Hono K.
- Journal Title
  
  Acta Materialia
  
  Volume: 177 Pages: 1-8
- DOI
  10.1016/j.actamat.2019.07.017
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K05257, KAKENHI-PROJECT-18H03787
[Journal Article] Back-hopping in spin-transfer-torque devices: Possible origin and countermeasures2018
- Author(s)
  C. Abert, H. Sepehri-Amin, F. Bruckner, C. Vogler, M. Hayashi, D. Suess
- Journal Title
  
  Physical Review Applied
  
  Volume: Accepted
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14802
[Journal Article] Back-Hopping in Spin-Transfer-Torque Devices: Possible Origin and Countermeasures2018
- Author(s)
  Claas Abert, Hossein Sepehri-Amin, Florian Bruckner, Christoph Vogler, Masamitsu Hayashi, Dieter Suess
- Journal Title
  
  Physical Review Applied
  
  Volume: 9 Issue: 5
- DOI
  10.1103/physrevapplied.9.054010
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14802
[Presentation] Exploring coercivity limit in SmFe12-based thin films2023
- Author(s)
  H. Sepehri-Amin
- Organizer
  REPM 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Presentation] Correlative (S)TEM/APT analysis of magnetic materials for green energy conversions2023
- Author(s)
  H. Sepehri-Amin
- Organizer
  Atom probe tomography & microscopy 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Presentation] Development of high performance permanent magnets; elements criticality, new demands, and extrinsic magnetic properties2023
- Author(s)
  H. Sepehri-Amin
- Organizer
  The Joint European Magnetic Symposia (JEMS) 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26368
[Presentation] Research on high-performance permanent magnet materials without using rare elements2023
- Author(s)
  H. Sepehri-Amin
- Organizer
  Japan Institute of Metals,
- Invited
- Data Source
  KAKENHI-PROJECT-23K26368
[Presentation] Effect of buffer layer, annealing and composition on Inverse Giant Magneto-Resistance (GMR) arising from negative spin polarization of FexCr1-x2021
- Author(s)
  Nagarjuna Asam, Tomoya Nakatani, Hossein Sepehri-Amin, Yuya Sakuraba, Kazuhiro Hono
- Organizer
  JSAP Annual Meetings Extended Abstracts The 81st JSAP Autumn Meeting 2020
- Data Source
  KAKENHI-PROJECT-19K05257
[Presentation] Analysis of a Spin-Torque Oscillator Using Injection Locking to an External Microwave Field2021
- Author(s)
  H Suto, N Asam, S Tamaru, H Sepehri-Amin, A Bolyachkin, W Zhou, T Nakatani, H Kubota, Y Sakuraba
- Organizer
  2021 IEEE 32nd Magnetic Recording Conference (TMRC)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K05257
[Presentation] Realizing oscillation of all-in-plane spin-torque-oscillator for microwave assisted magnetic recording2019
- Author(s)
  H. Sepehri-Amin
- Organizer
  The Japan Societu of Applied Physics, The 80th Autumn Meeting, 2019
- Data Source
  KAKENHI-PROJECT-19K05257
[Presentation] Design of field generating layer in all-in-plane spin-torque-oscillator2018
- Author(s)
  H. Sepehri-Amin
- Organizer
  Intermag 2018
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14802
[Presentation] Design and development of all-in-plane spin-torque-oscillator for microwave assisted magnetic recording2018
- Author(s)
  H. Sepehri-Amin
- Organizer
  The 28th magnetic recording conference (TMRC2017)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14802
[Presentation] Design and development of spin-torque-oscillator for microwave assisted magnetic recording2017
- Author(s)
  H. Sepehri-Amin
- Organizer
  The 28th magnetic recording conference TMRC2017
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14802

1. 葛西伸哉 (20378855)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. 杉本聡志 (90812610)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 嶋敏之 (50261508)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
4. 阿部太一 (50354155)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
5. 竹内祐太朗 (10882136)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 山根結太 (30586863)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 宝野和博

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
8. 桜庭裕弥

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

SEPEHRI Navid 世伯理 那仁 (Ｓ．Ａｍｉｎ Ｈｏｓｓｅｉｎ)

S.AminHossein

SEPEHRI-AMIN H. 世伯理 那仁

Sepehri-Amin Hossein S.Amin Hossein

Research Projects

Research Products

Co-Researchers

Materials research for high-speed and low-power-consumption antiferromagnetic spintronics devices

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

磁気スキルミオンを用いた新規機能性デバイスの創出

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of high-performance SmFe12-based sintered magnets using a unique combinatorial approachPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Design and development of spin-torque-oscillator and recording media for microwave assisted magnetic recordingPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Design and development of spin-torque-oscillator for microwave assisted magnetic recordingPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Micromagnetic simulations of Nd-Fe-B hot-deformed magnets subjected to eutectic grain boundary diffusion process2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Microstructure and coercivity of Al-diffused Sm(Fe,Co,B)12 film2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Tomography-based digital twin of Nd-Fe-B permanent magnets2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] High-coercivity SmFe12-based anisotropic sintered magnets by Cu addition2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Exploring secondary phases in the Sm-Fe-V system beneficial for coercivity2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Transmission electron microscopy image based micromagnetic simulations for optimizing nanostructure of FePt-X heat-assisted magnetic recording media2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Analysis of an all-in-plane spin-torque oscillator using injection locking to an external microwave magnetic field2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Analysis method of a spin-torque oscillator using dc resistance change during injection locking to an external microwave magnetic field2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Dependence of the Growth Mode in Epitaxial FePt Films on Surface Free Energy2021

Author(s)

Journal Title

SEPEHRI Navid 世伯理那仁 (Ｓ．ＡｍｉｎＨｏｓｓｅｉｎ)

SEPEHRI-AMIN H. 世伯理那仁