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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2017, Volume 105, Issue 8, Pages 489–490
DOI: https://doi.org/10.7868/S0370274X17080057
(Mi jetpl5243)
 

This article is cited in 10 scientific papers (total in 10 papers)

CONDENSED MATTER

Unconventional pairing in three-dimensional topological insulators with warped surface state

A. S. Vasenkoa, A. A. Golubovbc, V. M. Silkinde, E. V. Chulkovdf

a National Research University Higher School of Economics, 101000 Moscow, Russia
b Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
c Moscow Institute of Physics and Technology, Dolgoprudny, 141700 Moscow, Russia
d Departamento de Física de Materiales, Facultad de Ciencias Químicas, UPV/EHU, 20080 San Sebastián, Basque Country, Spain
e IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
f Tomsk State University, 634050 Tomsk, Russia
Full-text PDF (98 kB) Citations (10)
References:
Abstract: We study the effect of the Fermi surface anisotropy (hexagonal warping) on the superconducting pair potential, induced in a three-dimensional topological insulator (TI) by proximity with an s-wave superconductor (S) in presence of a magnetic moment of a nearby ferromagnetic insulator (FI). In the previous studies, similar problem was treated with a simplified Hamiltonian, describing an isotropic Dirac cone dispersion. This approximation is only valid near the Dirac point. However, in topological insulators, the chemical potential often lies well above this point, where the Dirac cone is strongly anisotropic and its constant energy contour has a snowflake shape. Taking into account this shape, we show that a very exotic pair potential is induced on the topological insulator surface. Based on the symmetry arguments we also discuss the possibility of a supercurrent flowing along the S/FI interface, when an S/FI hybrid structure is formed on the TI surface.
Received: 15.02.2017
Revised: 15.03.2017
English version:
Journal of Experimental and Theoretical Physics Letters, 2017, Volume 105, Issue 8, Pages 497–501
DOI: https://doi.org/10.1134/S0021364017080082
Bibliographic databases:
Document Type: Article
Language: English
Citation: A. S. Vasenko, A. A. Golubov, V. M. Silkin, E. V. Chulkov, “Unconventional pairing in three-dimensional topological insulators with warped surface state”, Pis'ma v Zh. Èksper. Teoret. Fiz., 105:8 (2017), 489–490; JETP Letters, 105:8 (2017), 497–501
Citation in format AMSBIB
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\paper Unconventional pairing in three-dimensional topological insulators with warped surface state
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\yr 2017
\vol 105
\issue 8
\pages 489--490
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\crossref{https://doi.org/10.7868/S0370274X17080057}
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\jour JETP Letters
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\pages 497--501
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  • This publication is cited in the following 10 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
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