Studies on Electronic and Spin Transport at Topological Surfaces and Edge States

• Project/Area Number: 25246025
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The University of Tokyo
• Principal Investigator: Hasegawa Shuji 東京大学, 理学(系)研究科(研究院), 教授 (00228446)
• Co-Investigator(Kenkyū-buntansha): TAKAYAMA Akari 東京大学, 大学院理学系研究科, 助教 (70722338) ; AKIYAMA Ryota 東京大学, 大学院理学系研究科, 助教 (40633962) ; HIRAHARA Toru 東京工業大学, 大学院理工学研究科, 准教授 (30451818)
• Research Collaborator: Saranin Alexander Institute of Automation and Control Processes, ロシア科学アカデミー, 教授 ; HOBARA Rei 東京大学, 大学院理学系研究科, 特任研究員 (30568176)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥45,890,000 (Direct Cost: ¥35,300,000、Indirect Cost: ¥10,590,000); Fiscal Year 2015: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000); Fiscal Year 2014: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000); Fiscal Year 2013: ¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000)
• Keywords: トポロジカル絶縁体 / ラシュバ効果 / スピン偏極電流 / スピン流 / ラシュバ超伝導 / フォトガルバニック効果 / スピンホール効果 / スピン軌道相互作用 / スピン・運動量ロッキング / ヘテロ界面 / ディラック・コーン / 電流誘起スピン偏極 / 多探針走査トンネル顕微鏡 / スピン偏極イオン散乱分光法

Outline of Final Research Achievements

The present research on transport phenomena at surfaces of strong spin-orbit coupling materials has provided the following results. (1) Direct detection of suppression of back scattering of surface-state carriers on topological insulators. (2) Detection of photogalvanic effect (spin-polarized current induced by irradiation of circularly polarized light) at Rashba-type spin-split surface states. (3) Detection of energy-gap opening in a topological Dirac-cone type state by proximity effect of magnetic material. (4) Detection of spin Hall effect at ultrathin films of topological insulators. (5) Discovery of superconductivity at Rashba-type spin-split surface states. (6) Discovery of superconductivity at Ca-intercalated double-layer graphene.

Research Products

• [Int'l Joint Research] Inst. Automation & Control Processes/Far Eastern Federal University/Vladivostok State Univ. Eco. & Serv.(ロシア連邦)
• [Journal Article] Superconducting Calcium-Intercalated Bilayer Graphene (2016)
  • Author(s): Satoru Ichinokura, Katsuaki Sugawara, Akari Takayama, Takashi Takahashi, and Shuji Hasegawa
  • Journal Title: ACS Nano Volume: 10 Issue: 2 Pages: 2761-2765
  • DOI: 10.1021/acsnano.5b07848
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Role of Quantum and Surface-State Effects in the Bulk Fermi Level Position of Ultrathin Bi films (2015)
  • Author(s): T. Hirahara, T. Shirai, T. Hajiri, M. Matsunami, K. Tanaka, S. Kimura, S. Hasegawa, and K. Kobayashi
  • Journal Title: Physical Review Letters Volume: 115 Issue: 10
  • DOI: 10.1103/physrevlett.115.106803
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Two-Dimensional Superconductor with a Giant Rashba Effect: One-Atom-Layer Tl-Pb Compound on Si(111) (2015)
  • Author(s): A. V. Matetskiy, S. Ichinokura, L. V. Bondarenko, A. Y. Tupchaya, D. V. Gruznev, A. V. Zotov, A. A. Saranin, R. Hobara, A. Takayama, and S. Hasegawa
  • Journal Title: Physical Review Letters Volume: 115 Issue: 14 Pages: 147003-147003
  • DOI: 10.1103/physrevlett.115.147003
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Direct observation of a gap opening in topological interface states of MnSe/Bi2Se3 heterostructure (2015)
  • Author(s): A.V. Matetskiy, I. A. Kibirev, T. Hirahara, S. Hasegawa, A.V. Zotov, and A.A. Saranin
  • Journal Title: Applied Physics Letters Volume: 107 Issue: 9
  • DOI: 10.1063/1.4930151
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Spin-Dependent Ion Scattering on Bismuth Surfaces (2015)
  • Author(s): 一ノ倉聖, 平原徹, 酒井治, 長谷川修司, 鈴木拓
  • Journal Title: Hyomen Kagaku Volume: 36 Issue: 8 Pages: 408-411
  • DOI: 10.1380/jsssj.36.408
  • NAID: 130005093814
  • ISSN: 0388-5321, 1881-4743
  • Peer Reviewed
• [Journal Article] 物理科学、この30年：表面物理学 (2015)
  • Author(s): 長谷川修司
  • Journal Title: パリティ Volume: 30 Pages: 14-16
• [Journal Article] Recent Advances in Research on Electronic and Spin Transport at Surfaces (2015)
  • Author(s): 長谷川修司
  • Journal Title: Hyomen Kagaku Volume: 36 Issue: 3 Pages: 104-111
  • DOI: 10.1380/jsssj.36.104
  • NAID: 130005129551
  • ISSN: 0388-5321, 1881-4743
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] In situ Magnetotransport Measurements of Ultrathin Bi films: Evidence for a Surface-Bulk Coherent Transport (2014)
  • Author(s): M. Aitani, *T. Hirahara, S. Ichinokura, M. Hanaduka, D. Y. Shin, S. Hasegawa
  • Journal Title: Physical Review Letters Volume: 113 Issue: 20 Pages: 206802-206802
  • DOI: 10.1103/physrevlett.113.206802
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Structure and transport properties of Cu doped Bi2Se3 films (2014)
  • Author(s): T. Shirasawa, M. Sugiki, T. Hirahara, M. Aitani, T. Shirai, S. Hasegawa, and T. Takahashi
  • Journal Title: Physical Review B Volume: 89 Issue: 19 Pages: 195311-195311
  • DOI: 10.1103/physrevb.89.195311
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Structure Determination of Multilayer Silicene Grown on Ag(111) films by Electron Diffraction: Evidence for Ag Segregation at the Surface (2014)
  • Author(s): T. Shirai, T. Shirasawa, T. Hirahara, N. Fukui, T. Takahashi, and S. Hasegawa
  • Journal Title: Physical Review B Volume: 89 Issue: 24
  • DOI: 10.1103/physrevb.89.241403
  • Peer Reviewed
• [Journal Article] <i>In Situ </i>Microfabrication and Measurements of Bi₂Se₃Ultrathin Films in a Multichamber System with a Focused Ion Beam, Molecular Beam Epitaxy, and Four-Tip Scanning Tunneling Microscope (2014)
  • Author(s): N. Fukui, R. Hobara, T. Hirahara, Y. Miyatake, H. Mizuno, T. Sasaki, T. Nagamura, and S. Hasegawa
  • Journal Title: e-Journal of Surface Science and Nanotechnology Volume: 12 Issue: 0 Pages: 423-430
  • DOI: 10.1380/ejssnt.2014.423
  • NAID: 130004694041
  • ISSN: 1348-0391
  • Peer Reviewed / Open Access
• [Journal Article] Redox Control and High Conductivity of Nickel Bis(dithiolene) Complex π–Nanosheet: A Potential Organic Two-Dimensional Topological Insulator (2014)
  • Author(s): T. Kambe, R. Sakamoto, T. Kusamoto, T. Pal, N. Fukui, K. Hoshiko, T. Shimojima, Z. Wang, K. Ishizaka, S. Hasegawa, F. Liu, and H. Nishihara
  • Journal Title: Journal of the American Chemical Society Volume: 136 Issue: 41 Pages: 14357-14360
  • DOI: 10.1021/ja507619d
  • Peer Reviewed
• [Journal Article] Electron-spin-dependent 4He+ ion scattering on Bi surfaces (2014)
  • Author(s): 一ノ倉聖、平原徹、酒井治、長谷川修司、鈴木拓
  • Journal Title: Radiat. Eff. Defects Solids Volume: 169 Issue: 12 Pages: 1003-1009
  • DOI: 10.1080/10420150.2014.977284
  • Peer Reviewed
• [Journal Article] Anisotropic Electronic Conduction in Metal Nanofilms Grown on a One-Dimensional Surface Superstructure (2014)
  • Author(s): N. Nagamura, R. Hobara, T. Uetake, T. Hirahara, M. Ogawa, T. Okuda, K. He, P. Moras, P. M. Sheverdyaeva, C. Carbone, K. Kobayashi, I. Matsuda, and S. Hasegawa
  • Journal Title: Physical Review B Volume: 89 Issue: 12
  • DOI: 10.1103/physrevb.89.125415
  • Peer Reviewed
• [Journal Article] Magnetoresistance measurements of a superconducting surface state of In-induced and Pb-induced structures on Si(111) (2013)
  • Author(s): M. Yamada, T. Hirahara, and S. Hasegawa
  • Journal Title: Phys. Rev. Lett Volume: 110 Issue: 23 Pages: 237001-237001
  • DOI: 10.1103/physrevlett.110.237001
  • Peer Reviewed
• [Journal Article] In situ transport measurements on ultrathin Bi (111) films using a magnetic tip : Possible detection of current-ind uced spin polarization in the surface states (2013)
  • Author(s): T. Tono, T. Hirahara, S. Hasegawa
  • Journal Title: New Journal of Physics Volume: 15 Issue: 10 Pages: 105018-105018
  • DOI: 10.1088/1367-2630/15/10/105018
  • Peer Reviewed
• [Journal Article] Fermi level tuning of topological insulator thin films (2013)
  • Author(s): M. Aitani, Y. Sakamoto, T. Hirahara, M. Yamada, H. Miyazaki, M. Matsunami, S. Kimura, and S. Hasegawa
  • Journal Title: Jpn. Jour. Appl. Phys Volume: 52 Issue: 11R Pages: 110112-110112
  • DOI: 10.7567/jjap.52.110112
  • Peer Reviewed
• [Journal Article] Evidence of Dirac fermions in multilayer silicene (2013)
  • Author(s): P. De Padova, P. Vogt, A. Resta, J. Avila, I. Razado-Colambo, C. Quaresima, C. Ottaviani, B. Olivieri, T. Bruhn, T. Hirahara, T. Shirai, S. Hasegawa, M. C. Asensio, and G. Le Lay
  • Journal Title: Appl. Phys. Lett Volume: 102 Issue: 16 Pages: 163106-163106
  • DOI: 10.1063/1.4802782
  • Peer Reviewed
• [Presentation] Charge/spin transport and superconductivity at Rashba spin-split surface states (2016)
  • Author(s): S. Hasegawa
  • Organizer: The 23rd International Colloquium on Scanning Probe Microscopy (ICSPM23)
  • Place of Presentation: ヒルトンニセコビレッジホテル(北海道ニセコ市)
  • Year and Date: 2016-12-10
  • Int'l Joint Research / Invited
• [Presentation] Atomic-Layer Superconductors (2016)
  • Author(s): S. Hasegawa
  • Organizer: International Symposium on Two-Dimensional Layered Materials and Art
  • Place of Presentation: Marseille (France)
  • Year and Date: 2016-03-23
  • Int'l Joint Research / Invited
• [Presentation] 原子ステップをもつトポロジカル絶縁体のin situ輸送特性観測 (2016)
  • Author(s): 福居直哉，保原麗，高山あかり，秋山了太，長谷川修司
  • Organizer: 日本物理学会 第71回年次大会
  • Place of Presentation: 東北学院大学(宮城県仙台市)
  • Year and Date: 2016-03-19
• [Presentation] (BixSb1-x)2Te3における量子振動および量子コヒーレント輸送の観測 (2016)
  • Author(s): 秋山了太，角田一樹，一ノ倉聖，木村昭夫，Konstantin Kokh，Oleg Tereshchenko，長谷川修司
  • Organizer: 日本物理学会 第71回年次大会
  • Place of Presentation: 東北学院大学(宮城県仙台市)
  • Year and Date: 2016-03-19
• [Presentation] Ca-インターカレートした二層グラフェンにおける超伝導 (2016)
  • Author(s): 一ノ倉聖，菅原克明，高山あかり，高橋隆，長谷川修司
  • Organizer: 日本物理学会 第71回年次大会
  • Place of Presentation: 東北学院大学(宮城県仙台市)
  • Year and Date: 2016-03-19
• [Presentation] Atomic-Layer Superconductors (2016)
  • Author(s): S. Hasegawa
  • Organizer: The 16th Japan-Korea-Taiwan Workshop on Strongly Correlated Electron Systems
  • Place of Presentation: 東京大学（東京都文京区）
  • Year and Date: 2016-02-18
  • Int'l Joint Research / Invited
• [Presentation] in situ 電気伝導測定によるRashba系表面構造(Tl, Pb)/Si(111)の超伝導の観測 (2015)
  • Author(s): 一ノ倉聖，A.V. Matetskiy，L.V. Bondarenko，A.Y. Tupchaya，D.V. Gruznev，A.V. Zotov，保原麗，秋山了太，高山あかり，A.A. Saranin，長谷川修司
  • Organizer: 2015年真空・表面科学合同講演会
  • Place of Presentation: つくば国際会議場(茨城県つくば市)
  • Year and Date: 2015-11-30
• [Presentation] 走査トンネルポテンショメトリ法による表面上の単一ステップでの抵抗測定 (2015)
  • Author(s): 中村友謙, 芳野諒、保原麗, 長谷川修司, 平原徹
  • Organizer: 2015年真空・表面科学合同講演会
  • Place of Presentation: つくば国際会議場(茨城県つくば市)
  • Year and Date: 2015-11-30
• [Presentation] Surface Transport of Topological and Non-topological Materials (2015)
  • Author(s): S. Hasegawa
  • Organizer: The 10th International Symposium on Atomic Level Characterizations for New Materials and Devices (ALC'15)
  • Place of Presentation: くにびきメッセ（島根県松江市）
  • Year and Date: 2015-10-24
  • Int'l Joint Research / Invited
• [Presentation] 可視光レーザーを用いた表面ラシュバ系における光誘起電圧の円二色性：Bi表面およびBi吸着Ag表面 (2015)
  • Author(s): 石原大嵩，福居直哉，保原麗，高山あかり，秋山了太，平原徹，長谷川修司
  • Organizer: 日本物理学会 2015秋季大会
  • Place of Presentation: 関西大学（大阪府吹田市)
  • Year and Date: 2015-09-16
• [Presentation] 4端子電気伝導測定によるMnX/Bi2X3(X=Se,Te)薄膜の輸送特性 (2015)
  • Author(s): 久保高幸，中西亮介，高山あかり，福居直哉，保原麗，秋山了太，長谷川修司
  • Organizer: 日本物理学会 2015秋季大会
  • Place of Presentation: 関西大学（大阪府吹田市)
  • Year and Date: 2015-09-16
• [Presentation] Rashba系表面構造(Tl, Pb)/Si(111)における二次元超伝導：in situ電気伝導測定 (2015)
  • Author(s): 一ノ倉聖，A.V. Matetskiy，L.V. Bondarenko，A.Y. Tupchaya，D.V. Gruznev，A.V. Zotov，保原麗，秋山了太，高山あかり，A.A. Saranin，長谷川修司
  • Organizer: 日本物理学会 2015秋季大会
  • Place of Presentation: 関西大学（大阪府吹田市)
  • Year and Date: 2015-09-16
• [Presentation] Charge/Spin Transport at Surfaces (2015)
  • Author(s): S. Hasegawa
  • Organizer: The 7th International Conference on Scanning Probe Spectroscopy and Related Methods (SPS'15)
  • Place of Presentation: Poznan ( Poland)
  • Year and Date: 2015-06-22
  • Int'l Joint Research / Invited
• [Presentation] Surface transport below 1 K (2015)
  • Author(s): S. Hasegawa
  • Organizer: International Workshop on LEED and Related Techniques
  • Place of Presentation: Hannover (Germany)
  • Year and Date: 2015-05-28
  • Int'l Joint Research / Invited
• [Presentation] トポロジカル物質のインパクト (2015)
  • Author(s): 長谷川修司
  • Organizer: 日本表面科学会中部支部・日本真空学会東海支部合同講演会
  • Place of Presentation: 名古屋工業大学(愛知県名古屋市)
  • Year and Date: 2015-04-25
  • Invited
• [Presentation] スピン分解光電子分光によるV族半金属薄膜におけるラシュバ効果の研究 (2015)
  • Author(s): 高山あかり
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学､東京
  • Year and Date: 2015-03-21 – 2015-03-24
  • Invited
• [Presentation] BiおよびBi/Ag薄膜のラシュバ効果による光誘起電圧の円二色性 (2015)
  • Author(s): 石原大嵩，福居直哉，花塚真大，保原麗，高山あかり，平原徹，長谷川修司
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学、東京
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] トポロジカル絶縁体/磁性絶縁体超薄膜ヘテロ構造の電子状態 (2015)
  • Author(s): 平原徹，久保高幸，Andrei Mateckij，高山あかり，松波雅治，羽尻哲也，田中清尚，木村真一，長谷川修司
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学、東京
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 低温強磁場下におけるBi超薄膜の走査トンネルポテンショメトリ測定 (2015)
  • Author(s): 中村友謙，保原麗，高山あかり，長谷川修司，平原徹
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学、東京
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] Si(110)2×5-Auにおける擬1次元伝導の測定 (2015)
  • Author(s): 東野剛之，平原徹，長谷川修司
  • Organizer: 日本物理学会 第70回年次大会
  • Place of Presentation: 早稲田大学、東京
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] Spin-split surface states and electronic/spin transport therein (2015)
  • Author(s): S. Hasegawa
  • Organizer: The 11th Surface Nanoscience Workshop
  • Place of Presentation: Phenix Hotel, Pyeong Chang, Korea
  • Year and Date: 2015-02-14 – 2015-02-16
  • Invited
• [Presentation] Silicene, is it a cousin of Graphene? (2015)
  • Author(s): T. Shirai, T. Shirasawa, T. Hirahara, N. Fukui, T. Takahashi, and S. Hasegawa
  • Organizer: Symposium on Surface and Nano Sciences 2015
  • Place of Presentation: 新プリンスホテル、富良野、北海道
  • Year and Date: 2015-01-14 – 2015-01-18
• [Presentation] Spin Current at Surfaces of Strong Spin-Orbit Coupling Materials (2014)
  • Author(s): S. Hasegawa,Takeshi Tono, Naoya Fukui, Toru Hirahara, Rei Hobara, Akari Takayama
  • Organizer: Pacific Rim Symposium on Surfaces, Coatings & Interfaces
  • Place of Presentation: Hapuna Beach Prince Hotel, Hawaii, USA
  • Year and Date: 2014-12-07 – 2014-12-10
• [Presentation] Spins Transport at Crystal Surfaces (2014)
  • Author(s): S. Hasegawa
  • Organizer: The 2nd International Symposium on the Functionality of Organized Nanostructures
  • Place of Presentation: Miraikan, お台場、東京
  • Year and Date: 2014-11-27 – 2014-11-28
  • Invited
• [Presentation] The electric conduction anisotropy of topological insulator thin films, Bi2Te3 and Bi2Se3 grown on a vicinal substrate (2014)
  • Author(s): N. Fukui, T. Hirahara, and S. Hasegawa
  • Organizer: The 7th International Symposium on Surface Science
  • Place of Presentation: くにびきメッセ、島根
  • Year and Date: 2014-11-03 – 2014-11-06
• [Presentation] Electron-spin dependent 4He+ ion scattering on epitaxially-grown Bi surfaces (2014)
  • Author(s): S. Ichinokura, T. Hirahara, S. Hasegawa, O. Sakai and T.T. Suzuki
  • Organizer: The 7th International Symposium on Surface Science
  • Place of Presentation: くにびきメッセ、島根
  • Year and Date: 2014-11-03 – 2014-11-06
• [Presentation] Spins at Crystal Surfaces (2014)
  • Author(s): S. Hasegawa
  • Organizer: LMU-Todai Cooperation in Physics Workshop
  • Place of Presentation: Ludwig-Maxmilian University, Munchen, Germany
  • Year and Date: 2014-10-27
  • Invited
• [Presentation] Spins Current at Surfaces (2014)
  • Author(s): Takeshi Tono, Naoya Fukui, Toru Hirahara, Rei Hobara, S. Hasegawa
  • Organizer: Asia-Pacific Symposium on Solid Surfaces
  • Place of Presentation: 極東大学、Vladivostok, Russia
  • Year and Date: 2014-09-30 – 2014-10-02
• [Presentation] Bi超薄膜の走査トンネルポテンショメトリ測定：エッジでのポテンシャル異常 (2014)
  • Author(s): 中村友謙，保原麗，長谷川修司，平原徹
  • Organizer: 日本物理学会 2014年秋季大会
  • Place of Presentation: 中部大学、愛知
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 微斜面Bi2Te3, Bi2Se3薄膜の異方的電気伝導 (2014)
  • Author(s): 福居直哉，平原徹，長谷川修司
  • Organizer: 日本物理学会 2014年秋季大会
  • Place of Presentation: 中部大学、愛知
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 走査プローブ顕微鏡 ―ピコスケールで物質の表面を観る、計る、加工する― (2014)
  • Author(s): 長谷川修司
  • Organizer: 日本顕微鏡学会 第24回電子顕微鏡大学
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-06-12 – 2014-06-13
  • Invited
• [Presentation] 走査プローブ顕微鏡の現在、過去、未来― (2014)
  • Author(s): 長谷川修司
  • Organizer: 日本表面科学会 実用顕微評価技術セミナー2014
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-06-06
  • Invited
• [Presentation] Spin-Resolved Transport at Surface States: Current-Induced Spin Polarization and Spin Hall Effect (2014)
  • Author(s): T. Tono, N. Fukui, T. Hirahara, R. Hobara, and S. Hasegawa
  • Organizer: Symposium on Surface and Nano Sciences 2014
  • Place of Presentation: 富良野, 北海道
• [Presentation] Ultrathin materials (2014)
  • Author(s): T. Hirahara
  • Organizer: The 8th Japanese-French Frontiers of Sciences Symposium
  • Place of Presentation: Metz, France
• [Presentation] ４探針型走査トンネル顕微鏡によるナノ スケール計測 (2014)
  • Author(s): 長谷川修司
  • Organizer: 精密工学会2014 年度春季大会
  • Place of Presentation: 東京大学, 東京
  • Invited
• [Presentation] スピン偏極 イオン散乱分光法を用いたBi 超薄膜における電流誘 起スピン偏極の検証 (2014)
  • Author(s): 一ノ倉聖, 平原徹, 鈴木拓, 長谷川修司
  • Organizer: 日本物理学会第69 回年次大会
  • Place of Presentation: 東海大学, 神奈川
• [Presentation] In situ FIB 加工微 細構造を用いたBi2Se3 のスピンホール効果測定 (2014)
  • Author(s): 福居直哉、平原徹、長谷川修司
  • Organizer: 日本物理学会第69 回年次大会
  • Place of Presentation: 東海大学, 神奈川
• [Presentation] Surface Nanomaterials for Electronics and Spintronics (2013)
  • Author(s): S. Hasegawa
  • Organizer: Nanomeeting 2013
  • Place of Presentation: Minsk, Belarus
  • Invited
• [Presentation] Charge and Spin Transport Topological at Surfaces with Strong Electron-Phonon and Spin-Orbit Couplings (2013)
  • Author(s): S. Hasegawa
  • Organizer: International Workshop and Final Conference on ”Energy Dissipation at Surfaces”
  • Place of Presentation: Bad Honnef, Germany
  • Invited
• [Presentation] Surface Nanomaterials for Sustainable Growth - Superconducting and Spin-split Surface States - (2013)
  • Author(s): S. Hasegawa
  • Organizer: The Second Asian School-Conference on Physics and Technology of Nanostructured Materials (ASCO-NANOMAT 2013
  • Place of Presentation: Vladivostok, Russia
  • Invited
• [Presentation] Spin Splitting and Spin Transport at Surface States of Non-Magnetic Materials with Strong Spin-Orbit Coupling (2013)
  • Author(s): S. Hasegawa
  • Organizer: NSFC-JSPS seminar on magnetic surface and films
  • Place of Presentation: Shanghai, China
  • Invited
• [Presentation] Spin at Crystal Surfaces (2013)
  • Author(s): S. Hasegawa
  • Organizer: Workshop on Quantum Materials at Max Planck Institute
  • Place of Presentation: Stuttgart, Germany
  • Invited
• [Presentation] Topological Quantum Phase Transitions in Ultrathin Films (2013)
  • Author(s): T. Hirahara
  • Organizer: The 14th International Conference on the Formation of Semiconductor Interfaces (ICFSI-14)
  • Place of Presentation: Gyeongju, Korea)
  • Invited
• [Presentation] Ultrathin films of topological insulators (2013)
  • Author(s): T. Hirahara
  • Organizer: IMS workshop on Advanced Spectroscopy of Correlated Materials (ASCM 13)
  • Place of Presentation: 分子研, 岡崎
  • Invited
• [Presentation] Electrical Conductivity of a Dilute Magnetic Surface Superstructure on Si(111) (2013)
  • Author(s): D. Y. Shin, T. Hirahara, and S. Hasegawa
  • Organizer: The 14th International Conference on the Formation of Semiconductor Interfaces (ICFSI-14)
  • Place of Presentation: Gyeongju, Korea
• [Presentation] In situ FIB Etching and Conduction Measurement of Microstructures on a Topological Insulator Thin Film (2013)
  • Author(s): N. Fukui, T. Hirahara, and S. Hasegawa
  • Organizer: The 14th International Conference on the Formation of Semiconductor Interfaces (ICFSI-14)
  • Place of Presentation: Gyeongju, Korea
• [Presentation] Surface-State Superconductivity (2013)
  • Author(s): M. Yamada, T. Hirahara, R. Hobara, and S. Hasegawa
  • Organizer: The 14th International Conference on the Formation of Semiconductor Interfaces (ICFSI-14)
  • Place of Presentation: Gyeongju, Korea
• [Presentation] The modification of ultra-thin films and in situ electrical conduction measurements using a four-tip STM combined with FIB (2013)
  • Author(s): N. Fukui, T. Hirahara, and S. Hasegawa
  • Organizer: The 19th International Vacuum Congress (IVC-19)
  • Place of Presentation: Paris, France
• [Presentation] トポロジカル絶縁体の表面電子状態とス ピン伝導 (2013)
  • Author(s): 長谷川修司
  • Organizer: 日本磁気学会第191 回研究会／第45 回ス ピンエレクトロニクス専門研究会
  • Place of Presentation: 中央大学, 東京
  • Invited
• [Presentation] ビスマスはトポロジカル物質か？ (2013)
  • Author(s): 平原徹
  • Organizer: 科研費基 盤研究A「固体中のディラック電子」第3 回研究会
  • Place of Presentation: 赤穂, 兵庫
  • Invited
• [Presentation] シリセンに関する実験の現状 (2013)
  • Author(s): 平原徹
  • Organizer: 日本物理学会 2013 年度秋季大会領域4,6,7 合同シンポジウム「ト ポロジカル絶縁体・超伝導体の新物質・新成長法・新 構造」
  • Place of Presentation: 徳島大学, 徳島
  • Invited
• [Book] In Memory of Akira Tonomura: Physicist and Electron Microscopist (2013)
  • Author(s): S. Hasegawa 他
  • Total Pages: 250
  • Publisher: World Scientific
• [Book] 問題と解説で学ぶ表面科学 (2013)
  • Author(s): 長谷川修司
  • Total Pages: 250
  • Publisher: 共立
• [Remarks] Hasegawa Research Laboratory
  • URL: http://www-surface.phys.s.u-tokyo.ac.jp/
• [Remarks] 長谷川研究室
  • URL: http://www-surface.phys.s.u-tokyo.ac.jp/
• [Remarks] Hasegawa Lab
  • URL: http://www-surface.phys.s.u-tokyo.ac.jp/