Mitrofanovite Pt3Te4: A Topological Metal with Termination-Dependent Surface Band Structure and Strong Spin Polarization
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Mitrofanovite Pt3Te4: A Topological Metal with Termination-Dependent Surface Band Structure and Strong Spin Polarization
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| Автор |
Fujii, J.
Ghosh, B. Vobornik, I. Bari, Sarkar, A. Mondal, D. Kuo, C. -N. Bocquet, F. C. Zhang, L. Boukhvalov, D. W. Lue, C. S. Agarwal, A. Politano, A. |
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| Тематика |
ARPES
SPINTRONICS STM/STS SURFACE STATES TOPOLOGICAL METALS BAND STRUCTURE ELECTRONIC STATES METALS PHOTOELECTRON SPECTROSCOPY PLATINUM COMPOUNDS SCANNING TUNNELING MICROSCOPY SPIN POLARIZATION SURFACE STATES TELLURIUM COMPOUNDS TEXTURES TOPOLOGY VAN DER WAALS FORCES ANGLE RESOLVED PHOTOEMISSION SPECTROSCOPY ARPES HIGH POTENTIAL QUASIPARTICLES EXCITATION SCANNING TUNNELING MICROSCOPY/SPECTROSCOPY SPIN-POLARIZATION STM/STS SURFACE BAND STRUCTURES SURFACE TERMINATION TOPOLOGICAL METAL ANGLE RESOLVED PHOTOEMISSION SPECTROSCOPY ARTICLE CRYSTAL DENSITY FUNCTIONAL THEORY POLARIZATION SCANNING TUNNELING MICROSCOPY DENSITY FUNCTIONAL THEORY |
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| Описание |
Due to their peculiar quasiparticle excitations, topological metals have high potential for applications in the fields of spintronics, catalysis, and superconductivity. Here, by combining spin- and angle-resolved photoemission spectroscopy, scanning tunneling microscopy/spectroscopy, and density functional theory, we discover surface-termination-dependent topological electronic states in the recently discovered mitrofanovite Pt3Te4. Mitrofanovite crystal is formed by alternating, van der Waals bound layers of Pt2Te2 and PtTe2. Our results demonstrate that mitrofanovite is a topological metal with termination-dependent (i) electronic band structure and (ii) spin texture. Despite their distinct electronic character, both surface terminations are characterized by electronic states exhibiting strong spin polarization with a node at the Γ point and sign reversal across the Γ point, indicating their topological nature and the possibility of realizing two distinct electronic configurations (both of them with topological features) on the surface of the same material. © 2021 The Authors. Published by American Chemical Society.
Jiangsu Innovative and Entrepreneurial Talents Project NFFA-MUR Department of Science and Technology, Ministry of Science and Technology, India, डीएसटी Deutsche Forschungsgemeinschaft, DFG, (SFB 1083) National Natural Science Foundation of China, NSFC, (21775078) Science and Engineering Research Board, SERB Ministry of Education and Science of the Russian Federation, Minobrnauka, (FEUZ-2020-0060) Ministry of Science and Technology, Taiwan, MOST, (MOST-110-2124-M-006-010) This work has been partly performed in the framework of the nanoscience foundry and fine analysis (NFFA-MUR Italy Progetti Internazionali) facility. L.Z. acknowledges funding by the National Natural Science Foundation of China (No. 21775078). F.C.B. acknowledges funding by the DFG through the SFB 1083 Structure and Dynamics of Internal Interfaces (Project A 12). D.W.B. acknowledges support by Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, Project No. FEUZ-2020-0060) and Jiangsu Innovative and Entrepreneurial Talents Project. B.G. and A.A. acknowledge funding from Science and Engineering Research Board (SERB) and Department of Science and Technology (DST), government of India. A.A. thanks the HPC facility at IIT Kanpur for computational resources. C.S.L. and C.N.K. acknowledge funding by the Ministry of Science and Technology of Taiwan (MOST-110-2124-M-006-010). |
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| Дата |
2024-04-08T11:07:02Z
2024-04-08T11:07:02Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Fujii, J, Ghosh, B, Vobornik, I, Sarkar, AB, Mondal, D, Kuo, C-N, Bocquet, FC, Zhang, L, Boukhvalov, DW, Lue, CS, Agarwal, A & Politano, A 2021, 'Mitrofanovite Pt3Te4: A Topological Metal with Termination-Dependent Surface Band Structure and Strong Spin Polarization', ACS Nano, Том. 15, № 9, стр. 14786-14793. https://doi.org/10.1021/acsnano.1c04766
Fujii, J., Ghosh, B., Vobornik, I., Sarkar, A. B., Mondal, D., Kuo, C-N., Bocquet, F. C., Zhang, L., Boukhvalov, D. W., Lue, C. S., Agarwal, A., & Politano, A. (2021). Mitrofanovite Pt3Te4: A Topological Metal with Termination-Dependent Surface Band Structure and Strong Spin Polarization. ACS Nano, 15(9), 14786-14793. https://doi.org/10.1021/acsnano.1c04766 1936-0851 Final All Open Access; Green Open Access; Hybrid Gold Open Access https://pubs.acs.org/doi/pdf/10.1021/acsnano.1c04766 https://pubs.acs.org/doi/pdf/10.1021/acsnano.1c04766 http://elar.urfu.ru/handle/10995/131390 47090286 10.1021/acsnano.1c04766 85115098045 000703553600074 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
American Chemical Society
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| Источник |
ACS Nano
ACS Nano |
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