Explorarion of novel device technology based on topological electronic states
Project/Area Number |
16H03847
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Applied materials
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Research Institution | Tokyo Institute of Technology |
Principal Investigator |
Sasagawa Takao 東京工業大学, 科学技術創成研究院, 准教授 (30332597)
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Research Collaborator |
YANO Rikizo
OKAWA Kenjiro
MISAWA Tetsuro
MURASE Masayuki
HANAGURI Tetsuo
ISHIZAKA Kyoko
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Project Period (FY) |
2016-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
|
Keywords | トポロジカル絶縁体 / トポロジカル半金属 / トポロジカル超伝導体 / 新物質探索 / 新物性探索 / 単結晶 / 第一原理計算 / 量子計測 / 新機能探索 / 新物質 / 新機能 / デバイス化 |
Outline of Final Research Achievements |
Because of their novel quantum states, topological electronic materials are promising components for next generation electronics such as spin devices and quantum computers. We developed both new compounds and novel electronic functionality within a new class of materials called "topological insulators, topological semimetals, and topological superconductors". With regard to materials, phenomena, and functions, several unexpected discoveries were made, which were puplised as 45 articles in high-impact-factor journals, including 5 articles in Nature and sister journals.
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Academic Significance and Societal Importance of the Research Achievements |
トポロジカル電子物質について新物質、新現象、新機能を開拓できた。これは、当該分野の基礎学理の確立といった学術的観点で重要である。加えて、トポロジカル電子物質は、無散逸電気伝導やスピントロニクス、量子コンピュータなどの広範なデバイス技術にも応用可能性のある革新的デバイス素材と位置付けられていることから、将来的には省エネ・高速・高機能等で大きな波及効果も期待される。
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Report
(4 results)
Research Products
(201 results)
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[Journal Article] A weak topological insulator state in quasi-one-dimensional bismuth iodide2019
Author(s)
Ryo Noguchi, T. Takahashi, K. Kuroda, M. Ochi, T. Shirasawa, M. Sakano, C. Bareille, M. Nakayama, M. D. Watson, K. Yaji, A. Harasawa, H. Iwasawa, P. Dudin, T. K. Kim, M. Hoesch, V. Kandyba, A. Giampietri, A. Barinov, S. Shin, R. Arita, T. Sasagawa & Takeshi Kondo
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Journal Title
Nature
Volume: 566
Issue: 7745
Pages: 518-522
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Fermiology and Superconductivity of Topological Surface States in PdTe22018
Author(s)
O.J. Clark, M.J. Neat, K. Okawa, L. Bawden, I. Markovic, F. Mazzola, J. Feng, V. Sunko, J.M. Riley, W. Meevasana, J. Fujii, I. Vobornik, T.K. Kim, M. Hoesch, T. Sasagawa, P. Wahl, M.S. Bahramy, and P.D.C. King
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Journal Title
Phys. Rev. Lett.
Volume: 120
Issue: 15
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Ubiquitous Formation of Type-II Bulk Dirac Cones and Topological Surface States from a Single Orbital Manifold in Transition-metal Dichalcogenides2017
Author(s)
M. S. Bahramy, O. J. Clark, B.-J. Yang, J. Feng, L. Bawden, J. M. Riley, I. Markovic, F. Mazzola, V. Sunko, D. Biswas, S. P. Cooil, M. Jorge, J. W. Wells, M. Leandersson, T. Balasubramanian, J. FujiiI. Vobornik, J. Rault, T. K. Kim, M. Hoesch, K. Okawa, M. AsakawaT. Sasagawa, T. Eknapakul, W. Meevasana, P. D. C. King
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Journal Title
Nature Materials
Volume: 17
Issue: 1
Pages: 21-28
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Nonequilibrium Lattice-driven Dynamics of Stripes in Nickelates using Time-resolved X-ray Scattering2017
Author(s)
W. S. Lee, Y. F. Kung, B. Moritz, G. Coslovich, R. A. Kaindl, Y. D. Chuang, R. G. Moore, D. H. Lu, P. S. Kirchmann, J. S. Robinson, M. P. Minitti, G. Dakovski, W. F. Schlotter, J. J. Turner, S. Gerber, T. Sasagawa, Z. Hussain, Z. X. Shen, and T. P. Devereaux
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Journal Title
Phys. Rev. B
Volume: 95
Issue: 12
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Narrow-band Anisotropic Electronic Structure of ReS22017
Author(s)
D. Biswas, A. M. Ganose, R. Yano, J. M. Riley, L. Bawden, O. J. Clark, J. Feng, L. Collins-Mcintyre, W. Meevasana, T. K. Kim, M. Hoesch, J. E. Rault, T. Sasagawa, David O. Scanlon, and P. D. C. King
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Journal Title
Phys. Rev. B
Volume: 96
Issue: 8
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Observation of Nodal Line in Non-symmorphic Topological Semimetal InBi2017
Author(s)
S.A. Ekahana, S.-C. Wu, J. Jiang, K. Okawa, D. Prabhakaran, C.-C. Hwang, T. Sasagawa, C. Felser, B. Yan, Z. Liu, and Y. Chen
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Journal Title
New J. Phys.
Volume: 19
Issue: 6
Pages: 065007-065007
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Bandgap Modulation in Photoexcited Topological Insulator Bi2Te3 via Atomic Displacements2016
Author(s)
Masaki Hada, Katsura Norimatsu, Sei'ichi Tanaka, Sercan Keskin, Tetsuya Tsuruta, Kyushiro Igarashi, Tadahiko Ishikawa, Yosuke Kayanuma, R. J. Dwayne Miller, Ken Onda, Takao Sasagawa, Shin-ya Koshihara, Kazutaka G. Nakamura
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Journal Title
J. Chem. Phys.
Volume: 145
Issue: 2
Pages: 024504-024504
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Weak topological insulator state in quasi-one-dimensional bismuth iodide observed by surface-selective nano-ARPES2019
Author(s)
R. Noguchi, T. Takahashi, K. Kuroda, M. Ochi, T. Shirasawa, M. Sakano, C. Bareille, M. Nakayama, M. D. Watson, K. Yaji, A. Harasawa, H. Iwasawa, P. Dudin, T. K. Kim, M. Hoesch, S. Shin, R. Arita, T. Sasagawa, and Takeshi Kondo
Organizer
American Physical Society 2019 March Meeting
Related Report
Int'l Joint Research
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[Presentation] Observation of Nodal Line in Non-Symmorphic Topological Semimetal InBi2018
Author(s)
S.A. Ekahana, S.-C. Wu, J. Jiang, K. Okawa, D. Prabhakaran, C.-C. Hwang, S.-K. Mo, T. Sasagawa, C. Felser, B. Yan, Z. Liu, and Y. Chen
Organizer
American Physical Society March Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Percolative Superconducting Pre-pairing in Cuprates2018
Author(s)
D. Pelc, G. Yu, M. Vuckovic, P. Popcevic, M. Grbic, K. Velebit, Y. Li, Y. Tang, N.-H. Kaneko, R. He, Z. Anderson, X. Zhao, T. Sasagawa, A. Shekhter, M. Pozek, N. Barisic, and M. Greven
Organizer
American Physical Society March Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Fermiology and Superconductivity of Topological Surface States in PdTe22018
Author(s)
O. Clark, M. Neat, K. Okawa, L. Bawden, I. Markovic, F. Mazzola, J. Feng, T. Sasagawa, P. Wahl, M. Bahramy, and P. King
Organizer
American Physical Society March Meeting 2018
Related Report
Int'l Joint Research
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[Presentation] Topological Ladders in Transition-Metal Dichalcogenides2017
Author(s)
O. J. Clark, M. S. Bahramy, J. Feng, L. Bawden, J. M. Riley, V. Sunko, I. Markovic, F. Mazzola, D. Biswas, K. Okawa, T. Sasagawa, G. Balakrishnan, T. Eknapakul, W. Meevasana, P. D. C. King
Organizer
American Physical Society March Meeting 2017
Place of Presentation
New Orleans, USA
Year and Date
2017-03-13
Related Report
Int'l Joint Research
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[Presentation] Anisotropic electronic structure of ReS22017
Author(s)
D. Biswas, J. M. Riley, L. Bawden, O. J. Clark, L. Collins-Mcintyre, J. Feng, W. Meevasana, R. Yano, T. Sasagawa, A. Ganose, D. O. Scanlon, P. D. C. King
Organizer
American Physical Society March Meeting 2017
Place of Presentation
New Orleans, USA
Year and Date
2017-03-13
Related Report
Int'l Joint Research
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[Book] 超伝導磁束状態の物理2017
Author(s)
笹川 崇男 (門脇和男 編)
Total Pages
692
Publisher
裳華房
ISBN
9784785329228
Related Report
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