Imaging unconventional topological insulators
Project/Area Number |
26707016
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Partial Multi-year Fund |
Research Field |
Condensed matter physics I
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Research Institution | Tohoku University |
Principal Investigator |
Okada Yoshinori 東北大学, 原子分子材料科学高等研究機構, 助教 (00707656)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥28,730,000 (Direct Cost: ¥22,100,000、Indirect Cost: ¥6,630,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥25,610,000 (Direct Cost: ¥19,700,000、Indirect Cost: ¥5,910,000)
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Keywords | トポロジカル絶縁体 / 走査トンネル顕微鏡 / トンネル分光 / 物性物理 / 遷移金属酸化物 / 薄膜 / STM / 超伝導 / 酸化物薄膜 / 強相関電子系 / STM |
Outline of Final Research Achievements |
Topological insulator (TI) is a new class of quantum material, which cannot be simply classified neither metal, insulator, nor superconductor. TIs have been acquiring considerable attention in broad fields ranging from material science, condensed matter physics, high energy physics, and mathematics, after the theoretical prediction of its existence. Beyond previously known topological insulators, a new class of topological insulator called topological crystalline insulators (TCIs) provide exciting platform for exploring extraordinarily tunability of topologically protected Dirac electron. In this study, using spectroscopic scanning tunneling microscope, we clarified characteristic electronic states of TCI at the atomic scale.
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Report
(4 results)
Research Products
(20 results)
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[Journal Article] “Nanoscale Determination of the Mass Enhancement Factor in Lightly-Doped Bulk Insulator PbSe”2015
Author(s)
I. Zeljkovic, K. L. Scipioni, D. Walkup, Yoshinori Okada, Wenwen Zhou, R. Sankar, G. Chang, Y. J. Wang, H. Lin, A. Bansil, F. Chou, Z. Wang and V. Madhavan
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Journal Title
Nature Communications
Volume: 6
Issue: 1
Pages: 6559-6563
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] "Transformation of Dirac Surface States across the Quantum Phase Transition in a Topological Crystalline Insulator"2015
Author(s)
I. Zeljkovic★, Yoshinori Okada★, C. Y. Huang, R. Sankar, D. Walkup, W. Zhou, M. Serbyn, F. Chou, W. F. Tsai, H. Lin, A. Bansil, L. Fu, M. Z. Hasan, V. Madhavan (★equal contribution)
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Journal Title
Nature Materials
Volume: 14
Issue: 3
Pages: 318-324
DOI
Related Report
Peer Reviewed
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[Journal Article] "Mapping the unconventional orbital texture in topological crystalline insulators "2014
Author(s)
I. Zeljkovic★, Yoshinori Okada★, C. Y. Huang, R. Sankar, D. Walkup, W. Zhou, M. Serbyn, F. Chou, W. F. Tsai, H. Lin, A. Bansil, L. Fu, M. Z. Hasan, V. Madhavan (★equal contribution)
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Journal Title
Nature Physics
Volume: 10
Issue: 8
Pages: 572-577
DOI
Related Report
Peer Reviewed
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[Journal Article] Electronic phase separation in the doped spin-orbit driven Mott phase of Sr3(Ir1-xRux)2O72013
Author(s)
C. Dhital, T. Hogan, W. Zhou, X. Chen, Z. Ren, M. Pokharel, Yoshinori Okada, M. Heine, Wei Tian, Z. Yamani, C. Opeil, J. S. Helton, J. W. Lynn, Z. Wang, V. Madhavan, S. D. Wilson
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Journal Title
Nature Communications
Volume: 5
Issue: 1
Pages: 3377-3383
DOI
Related Report
Peer Reviewed
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[Presentation] ”Nanoscale Determination of the Mass Enhancement Factor in Lightly-Doped Bulk Insulator PbSe”2015
Author(s)
K. Scipioni, I. Zeljkovic, D. Walkup, Yoshinori Okada, W. Zhou, R. Sankar, G. Chang, Y. J. Wang, H. Lin, A. Bansil, F. Chou, Z. Wang, V. Madhavan
Organizer
Americal Physical Society, March Meeting (米国)
Place of Presentation
San Antonio, Texas
Year and Date
2015-03-02 – 2015-03-06
Related Report
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