Akiho Takafumi 秋保貴史

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AKIHO Takafumi 秋保貴史

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Researcher Number	50786978
Affiliation (Current)	2025: 日本電信電話株式会社NTT物性科学基礎研究所, 量子科学イノベーション研究部, 研究主任
Affiliation (based on the past Project Information) *help	2022 – 2024: 日本電信電話株式会社NTT物性科学基礎研究所, 量子科学イノベーション研究部, 研究主任 2016: 日本電信電話株式会社, NTT物性科学基礎研究所・量子電子物性研究部, 研究員
Review Section/Research Field	Except Principal Investigator Medium-sized Section 13:Condensed matter physics and related fields / Condensed matter physics I
Keywords	Except Principal Investigator トポロジカル量子計算 / エニオン統計 / 分数量子ホール効果 / 半導体へテロ構造 / 量子井戸 / スピンエレクトロニクス / 物性実験 / 超薄膜 / 半導体物性 / 量子化伝導 / 量子スピンホール効果 / 半導体ヘテロ構造 / トポロジカル絶縁体

量子ホールエニオン操作のためのトポロジカル量子技術
- Principal Investigator
  
  橋坂昌幸
- Project Period (FY)
  2022 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 13:Condensed matter physics and related fields
- Research Institution
  The University of Tokyo
  NTT Basic Research Laboratories
Realization of quantum spin Hall effect in electron-hole composite quantum wells
- Principal Investigator
  
  Suzuki Kyoichi
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Condensed matter physics I
- Research Institution
  NTT Basic Research Laboratories

All 2023 2022 2017 2016

All Journal Article Presentation

[Journal Article] Coherent-Incoherent Crossover of Charge and Neutral Mode Transport as Evidence for the Disorder-Dominated Fractional Edge Phase2023
- Author(s)
  Hashisaka Masayuki、Ito Takuya、Akiho Takafumi、Sasaki Satoshi、Kumada Norio、Shibata Naokazu、Muraki Koji
- Journal Title
  
  Physical Review X
  
  Volume: 13 Issue: 3
- DOI
  10.1103/physrevx.13.031024
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K03708, KAKENHI-PROJECT-22H00112
[Journal Article] Fast time-domain current measurement for quantum dot charge sensing using a homemade cryogenic transimpedance amplifier2022
- Author(s)
  Heorhii Bohuslavskyi, Masayuki Hashisaka, Takase Shimizu, Takafumi Akiho, Koji Muraki, Norio Kumada
- Journal Title
  
  Appl. Phys. Lett.
  
  Volume: 121 Issue: 18 Pages: 184003-184003
- DOI
  10.1063/5.0118391
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19H05603, KAKENHI-PROJECT-22H00112, KAKENHI-PROJECT-21H01022
[Journal Article] Engineering quantum spin Hall insulators by strained-layer heterostructures2016
- Author(s)
  T. Akiho, F. Couedo, H. Irie, K. Suzuki, K. Onomitsu, K. Muraki
- Journal Title
  
  Applied Physics Letters
  
  Volume: 109 Issue: 19 Pages: 192105-192105
- DOI
  10.1063/1.4967471
- Peer Reviewed / Acknowledgement Compliant / Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-15H05854, KAKENHI-PROJECT-26287068
[Presentation] Coherent-Incoherent Crossover of Charge and Neutral Mode Transport as Evidence for the Disorder-Dominated Fractional Edge Phase2023
- Author(s)
  M. Hashisaka, T. Ito, T. Akiho, S. Sasaki, N. Kumada, N. Shibata, and K. Muraki
- Organizer
  Quantum Phenomena in 2D Matter (QP2DM)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22H00112
[Presentation] 分数・整数量子ホール界面の再構成エッジ状態におけるコヒーレント輸送2022
- Author(s)
  橋坂昌幸、伊藤拓哉、秋保貴史、佐々木智、熊田倫雄、柴田尚和、村木康二
- Organizer
  日本物理学会2022年秋季大会
- Data Source
  KAKENHI-PROJECT-22H00112
[Presentation] A hallmark of disordered reconstructed-edge transport at a fractional-integer quantum Hall junction2022
- Author(s)
  Masayuki Hashisaka, Takuya Ito, Takafumi Akiho, Satoshi Sasaki, Norio Kumada, Naokazu Shibata, Koji Muraki
- Organizer
  29th International Conference on Low Temperature Physics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22H00112
[Presentation] InAs/InxGa1-xSb２次元トポロジカル絶縁体における歪みを用いたバンドエンジニアリング2017
- Author(s)
  秋保貴史，入江宏， F. Couedo，鈴木恭一，小野満恒二，村木康二
- Organizer
  第64回応用物理学会春季学術講演会 14p-501-9
- Place of Presentation
  パシフィコ横浜(神奈川県横浜市)
- Year and Date
  2017-03-14
- Data Source
  KAKENHI-PROJECT-26287068
[Presentation] バンド反転したInAs/InxGa1-xSb電子‐正孔結合系におけるBerry位相の観測2017
- Author(s)
  F. Couedo，入江宏，秋保貴史，鈴木恭一，小野満恒二，村木康二
- Organizer
  日本物理学会第７２回年次大会17a-B12-5
- Place of Presentation
  大阪大学(大阪府豊中市)
- Year and Date
  2017-03-17
- Data Source
  KAKENHI-PROJECT-26287068
[Presentation] InAs/InxGa1-xSb２次元トポロジカル絶縁体における歪みエンジニアリングによるバンドギャップの増大2017
- Author(s)
  秋保貴史，入江宏， F. Couedo，鈴木恭一，小野満恒二，村木康二
- Organizer
  日本物理学会第７２回年次大会17a-B12-4
- Place of Presentation
  大阪大学(大阪府豊中市)
- Year and Date
  2017-03-17
- Data Source
  KAKENHI-PROJECT-26287068
[Presentation] InAs/GaSb量子井戸における層厚制御によるバンド反転とその定量評価2016
- Author(s)
  秋保貴史，入江宏， F. Couedo，鈴木恭一，小野満恒二, 村木康二
- Organizer
  第77回応用物理学会秋季学術講演会14p-C41-15
- Place of Presentation
  朱鷺メッセ(新潟県新潟市)
- Year and Date
  2016-09-14
- Data Source
  KAKENHI-PROJECT-26287068
[Presentation] InAs/GaSb ２次元トポロジカル絶縁体伝導特性のInAs層・GaSb層厚さ依存性2016
- Author(s)
  入江宏, 鈴木恭一, 秋保貴史, F. Couedo, 小野満恒二, 村木康二
- Organizer
  日本物理学会秋季大会（2016年） 15aBH-4
- Place of Presentation
  金沢大学(石川県金沢市)
- Year and Date
  2016-09-15
- Data Source
  KAKENHI-PROJECT-26287068
[Presentation] InAs/GaSb 量子スピンホール系における歪みによるバンドエンジニアリングと伝導特性評価2016
- Author(s)
  秋保貴史， F. Couedo，入江宏，鈴木恭一，小野満恒二，村木康二(登壇者)
- Organizer
  日本物理学会秋季大会（2016年） 15aBH-5
- Place of Presentation
  金沢大学(石川県金沢市)
- Year and Date
  2016-09-15
- Data Source
  KAKENHI-PROJECT-26287068
[Presentation] Local electrostatic gating in InAs/GaSb quantum wells2016
- Author(s)
  F. Couëdo, H. Irie, T. Akiho, K. Suzuki, K. Onomitsu, K. Muraki
- Organizer
  日本物理学会秋季大会（2016年） 15aBH-6
- Place of Presentation
  金沢大学(石川県金沢市)
- Year and Date
  2016-09-15
- Data Source
  KAKENHI-PROJECT-26287068

1. Suzuki Kyoichi (20393770)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
2. 入江宏 (20646856)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
3. 小野満恒二 (30350466)

# of Collaborated Projects: 1 results

# of Collaborated Products: 7 results
4. 村木康二 (90393769)

# of Collaborated Projects: 1 results

# of Collaborated Products: 8 results
5. 橋坂昌幸 (80550649)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
6. 熊田倫雄 (30393771)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
7. 伊與田英輝 (50725851)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. Francois Couedo

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 柴田尚和

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Akiho Takafumi 秋保 貴史

AKIHO Takafumi 秋保 貴史

Research Projects

Research Products

Co-Researchers

量子ホールエニオン操作のためのトポロジカル量子技術

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Realization of quantum spin Hall effect in electron-hole composite quantum wells

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Coherent-Incoherent Crossover of Charge and Neutral Mode Transport as Evidence for the Disorder-Dominated Fractional Edge Phase2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Fast time-domain current measurement for quantum dot charge sensing using a homemade cryogenic transimpedance amplifier2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Engineering quantum spin Hall insulators by strained-layer heterostructures2016

Author(s)

Journal Title

DOI

Data Source

[Presentation] Coherent-Incoherent Crossover of Charge and Neutral Mode Transport as Evidence for the Disorder-Dominated Fractional Edge Phase2023

Author(s)

Organizer

Data Source

[Presentation] 分数・整数量子ホール界面の再構成エッジ状態におけるコヒーレント輸送2022

Author(s)

Organizer

Data Source

[Presentation] A hallmark of disordered reconstructed-edge transport at a fractional-integer quantum Hall junction2022

Author(s)

Organizer

Data Source

[Presentation] InAs/InxGa1-xSb２次元トポロジカル絶縁体における歪みを用いたバンドエンジニアリング2017

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] バンド反転したInAs/InxGa1-xSb電子‐正孔結合系におけるBerry位相の観測2017

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] InAs/InxGa1-xSb２次元トポロジカル絶縁体における歪みエンジニアリングによるバンドギャップの増大2017

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] InAs/GaSb量子井戸における層厚制御によるバンド反転とその定量評価2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] InAs/GaSb ２次元トポロジカル絶縁体伝導特性のInAs層・GaSb層厚さ依存性2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

[Presentation] InAs/GaSb 量子スピンホール系における歪みによるバンドエンジニアリングと伝導特性評価2016

Author(s)

Organizer

Place of Presentation

Year and Date

Data Source

Akiho Takafumi 秋保貴史

AKIHO Takafumi 秋保貴史