2016 Fiscal Year Annual Research Report
Variety and universality of bulk-edge correspondence in topological phases: From solid state physics to cold atoms
Project/Area Number |
26247064
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Research Institution | University of Tsukuba |
Principal Investigator |
初貝 安弘 筑波大学, 数理物質系, 教授 (80218495)
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Co-Investigator(Kenkyū-buntansha) |
高橋 義朗 京都大学, 理学研究科, 教授 (40226907)
木村 昭夫 広島大学, 理学研究科, 教授 (00272534)
福井 隆裕 茨城大学, 理学部, 教授 (10322009)
河原林 透 東邦大学, 理学部, 教授 (90251488)
青木 秀夫 国立研究開発法人産業技術総合研究所, 電子光技術研究部門, 研究員 (50114351)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Keywords | バルク・エッジ対応 / 冷却原子 / 角度分解光電子分光 / トポロジカル相 / トポロジカルメカニクス / トポロジカルポンピング / トポロジカル絶縁体 / フォトニック結晶 |
Outline of Annual Research Achievements |
「バルク・エッジ対応」の普遍性を明らかとするための多様な研究を遂行した.(1)量子以外の系でのバルクエッジ対応に関して,まずフォトニック結晶に関して局在基底を用いたトポロジカル数の計算手法を構築した.これを3次元に対して適用して,フォトニック結晶におけるワイル点の存在をセクションチャーン数を計算することで示し,更にエッジ状態との関係を解明した.また力学系におけるバルク・エッジ対応の研究に関して質点を3次元のダイヤモンド格子にバネで結合した系を考え,この系のエッジ状態とベリー位相の関係を明らかとした.(2)トポロジカルポンピング現象について、引力および斥力相互作用するフェルミ粒子を用いた測定によりその堅牢性を確認し、さらに、準周期ポテンシャルを形成することで、ある程度の乱れポテンシャル深さまでの堅牢性を確認した。また、幾何学ポンピングのためのブロッホ振動の観測やスピンポンピングのための光格子の導入などを進めた。(3)H26年度に導入した3軸マニピュレーターを備えたレーザーおよび放射光スピン分解角度分解光電子分光を用いて、ワイル半金属TaIrTe4のエッジ状態であり表面フェルミアークとそのテクスチャーの観測を行なった。またノンシンモルフィックな空間群に属するCuTlSやLaSnTeについても測定を行ない、表面やバルクバンドの観測を行った。今後、一連の系のバルクエッジ対応について考察していく。時間角度分解光電子分光を用いてバルク絶縁性の高いトポロジカル絶縁体の表面起電力シフトがあることを発見し、今後のスピン流制御の可能性を見いだした。 分野横断の国際ワークショップ ”Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms”を開催した.
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Research Progress Status |
28年度が最終年度であるため、記入しない。
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Strategy for Future Research Activity |
28年度が最終年度であるため、記入しない。
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[Journal Article] Electric properties of Dirac fermions captured into 3D nanoporous graphene networks2016
Author(s)
Yoichi Tanabe, Yoshikazu Ito, Katsuaki Sugawara, Daisuke Hojo, Mikito Koshino,Takeshi Fujita, Tsutomu Aida, Xiandong Xu, Khuong Kim Huynh, Hidekazu Shimotani, Tadafumi Adschiri, Takashi Takahashi, Katsumi Tanigaki, Hideo Aoki, and Mingwei Chen
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Journal Title
Advanced Materials
Volume: 28
Pages: 10304
DOI
Peer Reviewed
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[Presentation] トポロジカル結晶絶縁体(Pb,Sn)Te薄膜のキャリア密度制御および表面状態観察2017
Author(s)
大滝祐輔, 山口智也, 石川諒, 黒田眞司, 中西亮介, D. Fan, 秋山了太, 長谷川修司, 宮本幸治, 佐藤仁, 木村昭夫
Organizer
日本物理学会第72回年次大会
Place of Presentation
大阪大学豊中キャンパス(豊中市),大阪府
Year and Date
2017-03-17 – 2017-03-20
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[Presentation] Observation of surface state of extreme magnetoresistance material YSb2017
Author(s)
Jiahua Chen, Mingtian Zheng, Kazuki Sumida, Kazuaki Taguchi, Tomoki Yoshikawa, Munisa Nurmamat, Shilong Wu, Eike F. Schwier, Kenya Shimada, Koji Miyamoto, Taichi Okuda, Yukiaki Ishida, Shik Shin, Akio Kimura
Organizer
日本物理学会第72回年次大会
Place of Presentation
大阪大学豊中キャンパス(豊中市),大阪府
Year and Date
2017-03-17 – 2017-03-20
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[Presentation] ナノポーラスグラフェン電気2重層トランジスタの輸送現象2017
Author(s)
田邉洋一, 伊藤良一, 菅原克明, 北條大介, 越野幹人, 藤田武志, 相田 努, Xu Xiandong, Huynh Kim Khuong, 下谷秀和, 阿尻雅文, 高橋 隆, 谷垣勝己, 青木秀夫, Chen Mingwei
Organizer
日本物理学会第72回年次大会(2017年)
Place of Presentation
大阪大学豊中キャンパス(豊中市),大阪府
Year and Date
2017-03-17 – 2017-03-17
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[Presentation] Surface Dirac Fermion dynamics of non-magnetic and magnetic topological insulators2017
Author(s)
Kazuki Sumida, Yukiaki Ishida, Tomoki Yoshikawa, Jiahua Chen, Munisa Nurmamat, Konstantin Kokh, Oleg Tereshchenko, Shik Shin, Akio Kimura
Organizer
Symposium on Surface Science & Nanotechnology -25th Anniversary of SSSJ Kansai- (SSSN-Kansai)
Place of Presentation
Kyoto International Community House, Kyoto, Kyoto
Year and Date
2017-01-24 – 2017-01-25
Int'l Joint Research
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[Presentation] Ambipolar surface photovoltaic shift of bulk insulating topological insulator Bi2Te32017
Author(s)
T. Yoshikawa, K. Sumida, Y. Ishida, J. Chen, M. Nurmamat, K. A. Kokh, O. E. Tereshchenko, S. Shin, A. Kimura
Organizer
Symposium on Surface Science & Nanotechnology-25th Anniversary of SSSJ Kansai- (SSSN-Kansai)
Place of Presentation
Kyoto International Community House, Kyoto, Kyoto
Year and Date
2017-01-24 – 2017-01-25
Int'l Joint Research
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[Presentation] Topological pumping of cold atoms in an optical lattice2016
Author(s)
Yoshiro Takahashi
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-29 – 2016-09-29
Int'l Joint Research / Invited
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[Presentation] Towards the realization of spin pump with ultracold atoms2016
Author(s)
A. Sawada
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-28 – 2016-09-28
Int'l Joint Research
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[Presentation] Roles of edge states in Thouless pumping2016
Author(s)
Yasuhiro Hatsugai
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-30
Int'l Joint Research / Invited
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[Presentation] Deformation of Dirac fermions with invariant zero modes2016
Author(s)
T. Kawarabayashi
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research / Invited
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[Presentation] Entanglement Chern numbers for topological ground states2016
Author(s)
T. Fukui
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research / Invited
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[Presentation] Superconducting and topological multiband systems2016
Author(s)
H. Aoki
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research / Invited
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[Presentation] Edge states of three-dimensional mechanical graphene2016
Author(s)
Yuta Takahashi
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research
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[Presentation] Topological edge modes in time varying photonic systems2016
Author(s)
S. Oono
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research
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[Presentation] Topological Thouless pumping with repulsive interaction2016
Author(s)
S. Nakajima
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research
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[Presentation] Surface photovolatic effect in the topological insulator Bi2Te32016
Author(s)
T. Yoshikawa, K. Sumida, Y. Ishida, J. Chen, M. Nurmamat, K. A. Kokh, O. E. Tereshchenko, S. Shin, A. Kimura
Organizer
Yukawa Institute for Theoretical Physics (YITP) international workshop, "Physics of bulk-edge correspondence and its universality: From solid state physics to cold atoms"
Place of Presentation
Panasonic Hall, YITP, Kyoto Univ., Kyoto, Kyoto
Year and Date
2016-09-27 – 2016-09-27
Int'l Joint Research
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[Presentation] トポロジカル結晶絶縁体(Pb,Sn)Te薄膜の角度分解光電子分光による表面状態観察2016
Author(s)
山口智也, 大滝祐輔, 石川諒, 黒田眞司, D. Fan, 秋山了太, 長谷川修司, 宮本幸治, 佐藤仁, 木村昭夫
Organizer
日本物理学会2016年秋季大会
Place of Presentation
金沢大学角間キャンパス (金沢市),石川県
Year and Date
2016-09-13 – 2016-09-16
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[Presentation] Direct observation of hidden local Rashba spin polarization in the novel superconductor LaO0.54F0.46BiS22016
Author(s)
Shilong Wu, Kazuki Sumida, Koji Miyamoto, Kazuaki Taguchi, Tomoki Yoshikawa, Akio Kimura, Yoshifumi Ueda, Masanori Nagao, Satoshi Watauchi, Isao Tanaka, Taichi Okuda
Organizer
日本物理学会2016年秋季大会
Place of Presentation
金沢大学角間キャンパス (金沢市),石川県
Year and Date
2016-09-13 – 2016-09-16
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[Presentation] Magnetic properties of (Sn,Mn)Te thin films grown by molecular beam epitaxy2016
Author(s)
R. Ishikawa, R. Sakurai, T. Yamaguchi, R. Akiyama, S. Kuroda, A. Kimura, K. Takeda, Y. Saito
Organizer
9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids (PASPS-9)
Place of Presentation
Kobe International Conference Center, Kobe, Hyogo
Year and Date
2016-08-08 – 2016-08-11
Int'l Joint Research
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[Presentation] A quantum gas microscope for ytterbium atoms2016
Author(s)
Yoshiro Takahashi
Organizer
47th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Place of Presentation
Rhode Island Convention Center, Providence, Rhode Island ,USA
Year and Date
2016-05-25 – 2016-05-25
Int'l Joint Research / Invited
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