Machida Akihiko 町田晃彦

… Alternative Names

Researcher Number	70354983
Affiliation (Current)	2019: 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所放射光科学研究センター, 上席研究員(定常)
Affiliation (based on the past Project Information) *help	2017 – 2019: 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所放射光科学研究センター, 上席研究員(定常) 2014: 独立行政法人日本原子力研究開発機構, 量子ビーム応用部門, 研究副主幹 2014: 日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 2012 – 2013: 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 2005 – 2006: 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究職 2003 – 2004: 日本原子力研究所, 計算科学技術推進センター, 副主任研究員 2003 – 2004: 特殊法人日本原子力研究所, 放射光科学研究センター・極限環境物性研究グループ, 研究員
Review Section/Research Field	Principal Investigator Condensed matter physics II Except Principal Investigator Quantum beam science / Science and Engineering / Structural/Functional materials / General mathematics (including Probability theory/Statistical mathematics)
Keywords	Principal Investigator 放射光X線回折 / 放射線、X線、粒子線 / 希土類金属水素化物 / 放射光粉末X線回折 / 構造相転移 / 高圧力 / 高圧 / コバルト硫化物 / リートベルト解析 / 絶縁体-金属転移 … More Except Principal Investigator ギンツブルグ・ランダウ方程式 / 磁気構造 / 分岐構造 / 鉄水素化物 / 変分法 / 放射光回折 / その場観察 / 高温高圧 / 高次水素機能 / 水素吸蔵 / 中性子・X線回折 / 金属水素化物 / 核反応計測 / 解の安定性 / 鉄重水素化物 / 超伝導モデル / Superconductivity / 反応拡散方程式 / 時間依存ギンツブルグ・ランダウ方程式 / 高温高水素圧 / 解の分岐 / 価数転移 / 重水素サイト占有率 / ヨーロピウム水素化物 / 渦糸 / パターン・ダイナミクス / 中性子回折 / Pattern dynamics / Ginzburg-Landau equation / 水素透過 / 大域的分岐構造 / 数値シミュレーション / Numerical simulation / 漸近挙動 / 強磁性 / Bifurcation structure / 安定性解析 / サイト束縛エネルギー / Variational method / 領域の摂動 / 結晶方位 / 格子体積膨張 / 組織制御 / 放射光X線回折 / 方位解析 / 非線形楕円型方程式 / ハイドロジェノミクス / 結晶構造 / 高温高圧状態図 / 水素 / 重水素組成 / サイト占有率 / 圧延・熱処理 / 高水素組成 Less

水素の先端計測による水素機能の高精度解析Ongoing
- Principal Investigator
  
  福谷克之
- Project Period (FY)
  2018 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  The University of Tokyo
Controlling of crystal orientation of constituent phases in Nb-TiNi alloys and their hydrogen permeabilityOngoing
- Principal Investigator
  
  石川和宏
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Structural/Functional materials
- Research Institution
  Kanazawa University
Study of Metal Hydrides with High Hydrogen Composition using Quantum Beams Techniques
- Principal Investigator
  
  AOKI Katsutoshi
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Research Field
  
  Quantum beam science
- Research Institution
  Tohoku University
希土類金属水素化物の秩序-無秩序転移の探索に関する研究Principal Investigator
- Principal Investigator
  
  町田晃彦
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Condensed matter physics II
- Research Institution
  Japan Atomic Energy Agency
コバルト硫化物における高圧下及び元素置換による構造変化と磁気転移に関する研究Principal Investigator
- Principal Investigator
  
  町田晃彦
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Condensed matter physics II
- Research Institution
  Japan Atomic Energy Agency
Mathematical studies for models of superconductivity
- Principal Investigator
  
  MORITA Yoshihisa
- Project Period (FY)
  2003 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  Ryukoku University

All 2015 2014 2013 2006 2005 2004 2003 Other

All Journal Article Presentation

[Journal Article] Phase diagramof the Eu-H system at high temperatures and high hydrogen pressures2015
- Author(s)
  Hiroyuki Saitoh, Akihiko Machida, Takahiro Matsuoka, Katsutoshi Aoki
- Journal Title
  
  Solid State Communications
  
  Volume: 205 Pages: 24-27
- Acknowledgement Compliant / Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24241032
[Journal Article] fcc Fe 中の重水素原子のサイト占有状態2015
- Author(s)
  青木勝敏，町田晃彦，齋藤寛之，服部高典，佐野亜沙美
- Journal Title
  
  波紋
  
  Volume: 25 Pages: 24-2
- Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-24241032
[Journal Article] Site occupancy of interstitial deuterium atoms in face-centred cubic iron2014
- Author(s)
  A. Machida, H. Saitoh, H. Sugimoto, T. Hattori, A. Sano-Furukawa, N. Endo, Y. Katayama, R. Iizuka,T. Sato, M. Matsuo, S. Orimo, K. Aoki
- Journal Title
  
  Nature Communications
  
  Volume: 5
- Acknowledgement Compliant / Open Access / Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24241032
[Journal Article] Synchrotron X-ray diffraction techniques for in situ measurement of hydride formation under several gigapascals of hydrogen2014
- Author(s)
  H. Saitoh, A. Machida, K. Aoki
- Journal Title
  
  Chinese Science Bulletin
  
  Volume: 59 Pages: 5290-5301
- Acknowledgement Compliant / Open Access / Peer Reviewed
- Data Source
  KAKENHI-PROJECT-24241032
[Journal Article] X-ray diffraction investigation of the hexagonal-fcc structural transition in yttrium trihydride under hydrostatic pressure2006
- Author(s)
  A.Machida, A.Ohmura, T.Watanuki, T.Ikeda, K.Aoki, S.Nakano, K.Takemura
- Journal Title
  
  Solid State Communications 138・9
  
  Pages: 436-440
- Data Source
  KAKENHI-PROJECT-17740239
[Journal Article] Structure of a quantized vortex near the BCS-BEC crossover in an atomic Fermi gas2005
- Author(s)
  M.Machida
- Journal Title
  
  Phys.Rev.Lett. Vol.94
  
  Pages: 140401-140401
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Structure of a quantized vortex near the BCS-BEC crossover in an atomic Fermi gas2005
- Author(s)
  M.Machida
- Journal Title
  
  Phys. Rev. Lett. Vol.94
  
  Pages: 140401-140401
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Josephson half-quantized vortices in long square pi junctions around d-dot2005
- Author(s)
  M.Machida
- Journal Title
  
  Physica C Vol.426-431
  
  Pages: 1566-1571
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Direct numerical simulations for non-equilibrium superconducting dynamics and related neutron detection in MgB22005
- Author(s)
  M.Machida
- Journal Title
  
  Physica C Vol.426-431
  
  Pages: 169-173
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Electronic Structure of a Half Quantized Vortex2004
- Author(s)
  M.Machida
- Journal Title
  
  Physica C Vol.412-414
  
  Pages: 367-371
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Phase and Amplitude Fluctuations above Hc2 in Type II Superconductors2004
- Author(s)
  M.Machida
- Journal Title
  
  Physica C Vol.412-414
  
  Pages: 333-337
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Novel Superfluidity in a Trapped Gas of Fermi Atoms with Repulsive Interaction Loaded on an Optical Lattice2004
- Author(s)
  M.Machida
- Journal Title
  
  Phys.Rev.Lett. Vol.93
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Phase and amplitude fluctuations above Hc2 in type II superconductors2004
- Author(s)
  M.Machida
- Journal Title
  
  Physica C Vol.412-414
  
  Pages: 333-337
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Direct Nomerical Experiments for Neutron Detection using MgB2 Superconductors2004
- Author(s)
  M.Machida
- Journal Title
  
  Nucl.Instrument and Method in Phys.Res.A Vol.529
  
  Pages: 409-412
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Freidel oscillation in charge profile and position dependent screening around a superconducting vortex core2003
- Author(s)
  M.Machida
- Journal Title
  
  Phys. Rev. Lett. Vol.90
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Dynamical matching of Josephson vortex lattice with sample edge in layered high-Tc superconductors : Origin of the periodic oscillation of flux flow resistance2003
- Author(s)
  M.Machida
- Journal Title
  
  Phys.Rev.Lett. Vol.90
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Dynamical matching of Josephson vortex lattice with sample edge in layered high-Tc superconductors : Origin of the periodic oscillation of flux flow resistance2003
- Author(s)
  M.Machida
- Journal Title
  
  Phys. Rev. Lett. Vol.90
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Freidel oscillation in charge profile and position dependent screening around a superconducting vortex core2003
- Author(s)
  M.Machida
- Journal Title
  
  Phys.Rev.Lett. Vol.90
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15340037
[Journal Article] Coexistenxe of Vortex Liquid and Solid in Rotating Bose-Einstein Condensate
- Author(s)
  M.Machida
- Journal Title
  
  J.Low Temp.Phys. (掲載予定)
- Data Source
  KAKENHI-PROJECT-15340037
[Presentation] 高温高圧力下中性子回折実験による鉄の重水素化過程のその場観察2014
- Author(s)
  町田晃彦、齋藤寛之、服部高典、佐野亜沙美、遠藤成輝、綿貫徹、片山芳則、飯塚理子、佐藤豊人、松尾元彰、折茂慎一、青木勝敏
- Organizer
  第11回水素量子アトミクス研究会
- Place of Presentation
  KEK物質構造科学研究所、つくば
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] Neutron diffraction measurement on hydrogenation process of Fe at high temperature and high pressure2013
- Author(s)
  K. Aoki, A. Machida, H. Saitoh, T. Hattori, A. Sano-Furukawa, R. Iizuka, N. Endo,T. Watanuki, Y. Katayama, M. Matsuo, T. Sato, S. Orimo
- Organizer
  European High Pressure Research Group International Meeting (EHPRG51)
- Place of Presentation
  Queen Mary, University of London, London, UK
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] PLANETを利用した鉄の重水素化過程のその場中性子回折観測2013
- Author(s)
  青木勝敏、佐藤豊人、松尾元彰、折茂慎一、飯塚理子、町田晃彦、齋藤寛之、服部高典、佐野亜沙美、遠藤成輝、綿貫徹、片山芳則
- Organizer
  第５４回高圧討論会
- Place of Presentation
  朱鷺メッセ、新潟
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] 中性子回折その場観察による重水素化鉄の高温高圧構造研究2013
- Author(s)
  町田晃彦、齋藤寛之、服部高典、佐野亜沙美、遠藤成輝、綿貫徹、片山芳則、青木勝敏、佐藤豊人、松尾元彰
- Organizer
  日本金属学会　2013年　秋季講演大会
- Place of Presentation
  金沢大学角間キャンパス、金沢市
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] 高温高圧下の鉄の重水素化過程のその場中性子回折観察2013
- Author(s)
  青木勝敏、佐藤豊人、松尾元彰、折茂慎一、飯塚理子、町田晃彦、齋藤寛之、服部高典、佐野亜沙美、遠藤成輝、綿貫徹、片山芳則
- Organizer
  日本中性子科学会第13回年会
- Place of Presentation
  ちば県民プラザ、柏市
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] 超高圧中性子回折装置PLANET を利用した鉄の重水素化過程のその場観察2013
- Author(s)
  青木勝敏、佐藤豊人、松尾元彰、折茂慎一、飯塚理子、町田晃彦、齋藤寛之、服部高典、佐野亜沙美、遠藤成輝、綿貫徹、片山芳則
- Organizer
  日本金属学会　2013年　秋季講演大会
- Place of Presentation
  金沢大学角間キャンパス、金沢市
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] 高温高圧下における鉄の重水素化過程と重水素占有状態の観測
- Author(s)
  町田晃彦、齋藤寛之、服部高典、佐野亜沙美、佐藤豊人、松尾元彰、折茂慎一、青木勝敏
- Organizer
  JAEA放射光シンポジウム2015
- Place of Presentation
  大型放射光施設SPring-8、佐用町
- Year and Date
  2015-03-16 – 2015-03-17
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] Neutron diffraction measurement on formation process of superabundant vacancies in FeDx
- Author(s)
  K. Aoki, A. Machida, H. Saitoh, T. Hattori, A. Sano-Furukawa, T. Sato, S. Orimo
- Organizer
  European High Pressure Research Group International Meeting (EHPRG52)
- Place of Presentation
  Universit de Lyon, Lyon
- Year and Date
  2014-09-07 – 2014-09-12
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] Neutron diffraction study of site occupancy of interstitial deuteride atoms in FeDx at high temperature and pressure
- Author(s)
  K. Aoki, A. Machida, H. Saitoh, T. Hattori, A. Sano-Furukawa, T. Sato, S. Orimo
- Organizer
  Asian Conference on High Pressure Research (ACHPR-7)
- Place of Presentation
  Chulalongkorn University, Bangkok
- Year and Date
  2015-01-16 – 2015-01-18
- Invited
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] 鉄重水素化物中の超多量空孔形成過程のその場中性子回折観測
- Author(s)
  青木勝敏、町田晃彦、齋藤寛之、服部高典、佐野亜沙美、佐藤豊人、折茂慎一
- Organizer
  第５５回高圧討論会
- Place of Presentation
  徳島大学、徳島市
- Year and Date
  2014-11-22 – 2014-11-24
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] 高温高圧下中性子回折による超多量空孔生成の観測に向けて
- Author(s)
  町田晃彦、齋藤寛之、服部高典、佐野亜沙美、佐藤豊人、折茂慎一、青木勝敏
- Organizer
  第12回水素量子アトミクス研究会
- Place of Presentation
  東北大学、仙台市
- Year and Date
  2014-10-23 – 2014-10-24
- Data Source
  KAKENHI-PROJECT-24241032
[Presentation] In Situ Neutron Diffraction Measrement on Deuterization Process of Iron at High Pressure and High Temperature
- Author(s)
  A. Machida, H. Saitoh, T. Hattori, A. Sano-Furukawa, N. Endo, T. Watanuki, Y. Katayama,
- Organizer
  International Symposium on Meatl-Hydrogen Systems (MH2014）
- Place of Presentation
  University of Salford, Manchesteｒ
- Year and Date
  2014-07-20 – 2014-07-25
- Data Source
  KAKENHI-PROJECT-24241032

1. OTOMO Toshiya (90270397)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
2. AOKI Katsutoshi (30356331)

# of Collaborated Projects: 1 results

# of Collaborated Products: 15 results
3. HATTORI Takanori (10327687)

# of Collaborated Projects: 1 results

# of Collaborated Products: 14 results
4. MATSUO Motoaki (20509038)

# of Collaborated Projects: 1 results

# of Collaborated Products: 9 results
5. KATAYAMA Yoshinori (20224462)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
6. SAITOH Hiroyuki (20373243)

# of Collaborated Projects: 1 results

# of Collaborated Products: 16 results
7. SANO Asami (30547104)

# of Collaborated Projects: 1 results

# of Collaborated Products: 14 results
8. ENDO Naruki (40611893)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
9. IKEDA Kazutaka (80451615)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. OSHITA Hidetoshi (00625163)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. FUJIHISA Hiroshi (90357913)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. SATO Toyoto (20455851)

# of Collaborated Projects: 1 results

# of Collaborated Products: 12 results
13. SUGIMOTO Hidehiko (00187668)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
14. MORITA Yoshihisa (10192783)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. YOTSUTANI Shoji (60128361)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. NINOMIYA Hirokazu (90251610)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. JIMBO Shuichi (80201565)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
18. MACHIDA Masahiko (60360434)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
19. KASAI Hironori (20344822)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
20. 石川和宏 (10312448)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
21. 福谷克之 (10228900)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Machida Akihiko 町田 晃彦

町田 晃彦 マチダ アキヒコ

MACHIDA Akihiko 町田 晃彦

町田 昌彦 マチダ マサヒコ

Research Projects

Research Products

Co-Researchers

水素の先端計測による水素機能の高精度解析Ongoing

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Controlling of crystal orientation of constituent phases in Nb-TiNi alloys and their hydrogen permeabilityOngoing

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Study of Metal Hydrides with High Hydrogen Composition using Quantum Beams Techniques

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

希土類金属水素化物の秩序-無秩序転移の探索に関する研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

コバルト硫化物における高圧下及び元素置換による構造変化と磁気転移に関する研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Mathematical studies for models of superconductivity

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Phase diagramof the Eu-H system at high temperatures and high hydrogen pressures2015

Author(s)

Journal Title

Data Source

[Journal Article] fcc Fe 中の重水素原子のサイト占有状態2015

Author(s)

Journal Title

Data Source

[Journal Article] Site occupancy of interstitial deuterium atoms in face-centred cubic iron2014

Author(s)

Journal Title

Data Source

[Journal Article] Synchrotron X-ray diffraction techniques for in situ measurement of hydride formation under several gigapascals of hydrogen2014

Author(s)

Journal Title

Data Source

[Journal Article] X-ray diffraction investigation of the hexagonal-fcc structural transition in yttrium trihydride under hydrostatic pressure2006

Author(s)

Journal Title

Data Source

[Journal Article] Structure of a quantized vortex near the BCS-BEC crossover in an atomic Fermi gas2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Structure of a quantized vortex near the BCS-BEC crossover in an atomic Fermi gas2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Josephson half-quantized vortices in long square pi junctions around d-dot2005

Author(s)

Journal Title

Description

Data Source

[Journal Article] Direct numerical simulations for non-equilibrium superconducting dynamics and related neutron detection in MgB22005

Author(s)

Machida Akihiko 町田晃彦

町田晃彦マチダアキヒコ

MACHIDA Akihiko 町田晃彦

町田昌彦マチダマサヒコ