Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Interfacing two-dimensional and magnetic topological insulators: Bi bilayer on MnBi2Te4-family materials. / Klimovskikh, I. I.; Eremeev, S. V.; Estyunin, D. A. и др.
в: Materials Today Advances, Том 23, 100511, 13.07.2024.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Interfacing two-dimensional and magnetic topological insulators: Bi bilayer on MnBi2Te4-family materials
AU - Klimovskikh, I. I.
AU - Eremeev, S. V.
AU - Estyunin, D. A.
AU - Filnov, S. O.
AU - Shimada, K.
AU - Golyashov, V. A.
AU - Solovova, N. Yu
AU - Tereshchenko, O. E.
AU - Kokh, K. A.
AU - Frolov, A. S.
AU - Sergeev, A. I.
AU - Stolyarov, V. S.
AU - Trontl, V. Mikšić
AU - Petaccia, L.
AU - Di Santo, G.
AU - Tallarida, M.
AU - Dai, J.
AU - Blanco-Canosa, S.
AU - Valla, T.
AU - Shikin, A. M.
AU - Chulkov, E. V.
N1 - I.I.K and T.V. acknowledge the support from the Red guipuzcoana de Ciencia, Tecnolog\u00EDa e Innovaci\u00F3n \u2013 Gipuzkoa NEXT 2023 from the Gipuzkoa Provincial Council . The project that gave rise to these results received the support of a fellowship from \u201Dla Caixa\u201D Foundation (ID 100010434). The fellowship code is LCF/BQ/PI24/12040021 . The authors acknowledge support by Russian Science Foundation grant \u2116 22-72-10074 and Saint Petersburg State University (Grant No. ID 95442847 ). S.V.E. acknowledge support from the Government research assignment for ISPMS SB RAS , project FWRW-2022-0001 (in the part of the DFT calculations). The authors also acknowledge support by Russian Foundation for Basic Research (Grants No. 21-52-12024 , and No. 19-29-12061 ) and state assignment of IGM SB RAS 122041400031-2 . The calculations were partially performed using the equipment of the Shared Resource Center \u201CFar Eastern Computing Resource\u201D of IACP FEB RAS ( https://cc.dvo.ru ). S.B-C thanks the MINECO of Spain , project PID2021-122609NB-C21 . LOREA was co-funded by the European Regional Development Fund (ERDF) within the Framework of the Smart Growth Operative Programme 2014\u20132020. We acknowledge Jordi Prat for technical support during ARPES experiments at LOREA. I.I.K and T.V. acknowledge the support from the Red guipuzcoana de Ciencia, Tecnolog\u00EDa e Innovaci\u00F3n \u2013 Gipuzkoa NEXT 2023 from the Gipuzkoa Provincial Council. The project that gave rise to these results received the support of a fellowship from \u201Dla Caixa\u201D Foundation (ID 100010434). The fellowship code is LCF/BQ/PI24/12040021. The authors acknowledge support by Saint Petersburg State University, Russia (Grant No. ID 95442847). S.V.E. acknowledge support from the Government research assignment for ISPMS SB RAS, project FWRW-2022-0001 (in the part of the DFT calculations). The authors also acknowledge support by Russian Foundation for Basic Research (Grants No. 21-52-12024, and No. 19-29-12061) and state assignment of IGM SB RAS 122041400031-2. The calculations were partially performed using the equipment of the Shared Resource Center \u201CFar Eastern Computing Resource\u201D of IACP FEB RAS (https://cc.dvo.ru). S.B-C thanks the MINECO of Spain, project PID2021-122609NB-C21. A.S.F. and V.S.S. thank Russian Science Foundation, Grant No. 23-72-30004 (https://rscf.ru/project/23-72-30004/) and A.I.S. thanks Grant No. 23-72-00020 (https://rscf.ru/project/23-72-00020/) for supporting his work on synthesis. LOREA was co-funded by the European Regional Development Fund (ERDF) within the Framework of the Smart Growth Operative Programme 2014\u20132020. We acknowledge Luca Sancin and Jordi Prat for technical support during ARPES experiments at BaDElPh and LOREA beamlines, respectively. G.V.A. and O.E.T. acknowledge support from the SRF SKIF Boreskov Institute of Catalysis (FWUR-2024-0042)
PY - 2024/7/13
Y1 - 2024/7/13
N2 - Meeting of non-trivial topology with magnetism results in novel phases of matter, such as quantum anomalous Hall (QAH) or axion insulator phases. Even more exotic states with high and tunable Chern numbers are expected at the contact of intrinsic magnetic topological insulators (IMTIs) and 2D topological insulators (TIs). Here we synthesize a heterostructures composed of 2D TI and 3D IMTIs, specifically of bismuth bilayer on top of MnBi2Te4-family of compounds and study their electronic properties by means of angle-resolved photoelectron spectroscopy (ARPES) and density functional theory (DFT). The epitaxial interface is characterized by hybridized Bi and IMTI electronic states. The Bi bilayer-derived states on different members of MnBi2Te4-family of materials are similar, except in the region of mixing with the topological surface states of the substrate. In that region, the new, substrate dependent interface Dirac state is observed. Our ab initio calculations show rich interface phases with emergence of exchange split 1D edge states, making the Bi/IMTI heterostructures promising playground for observation of novel members in the family of quantum Hall effects.
AB - Meeting of non-trivial topology with magnetism results in novel phases of matter, such as quantum anomalous Hall (QAH) or axion insulator phases. Even more exotic states with high and tunable Chern numbers are expected at the contact of intrinsic magnetic topological insulators (IMTIs) and 2D topological insulators (TIs). Here we synthesize a heterostructures composed of 2D TI and 3D IMTIs, specifically of bismuth bilayer on top of MnBi2Te4-family of compounds and study their electronic properties by means of angle-resolved photoelectron spectroscopy (ARPES) and density functional theory (DFT). The epitaxial interface is characterized by hybridized Bi and IMTI electronic states. The Bi bilayer-derived states on different members of MnBi2Te4-family of materials are similar, except in the region of mixing with the topological surface states of the substrate. In that region, the new, substrate dependent interface Dirac state is observed. Our ab initio calculations show rich interface phases with emergence of exchange split 1D edge states, making the Bi/IMTI heterostructures promising playground for observation of novel members in the family of quantum Hall effects.
KW - 2D materials
KW - Magnetic topological insulators
KW - Photoelectron spectroscopy
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85198080438&origin=inward&txGid=c8a7b969b1516a9d0e7f445872b84588
UR - https://www.mendeley.com/catalogue/dce5eee8-93ee-3b56-a61f-a4091fba85e8/
U2 - 10.1016/j.mtadv.2024.100511
DO - 10.1016/j.mtadv.2024.100511
M3 - Article
VL - 23
JO - Materials Today Advances
JF - Materials Today Advances
SN - 2590-0498
M1 - 100511
ER -
ID: 60830792