Revealing Intrinsic Superconductivity of the Nb/BiSbTe2Se Interface
A. D. Kudriashov,I. Babich,Razmik A. Hovhannisyan,Andrey G. Shishkin,S. N. Kozlov,Alexander S. Fedorov,Denis V. Vyalikh,Ekaterina Khestanova,M. Yu. Kupriyanov,Vasily S. Stolyarov +9 more
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In this paper , the double critical current in the Josephson junctions based on the topological insulator is observed in the fabricated planar Superconducting Quantum Interference Devicea by measuring critical currents as a function of temperature and magnetic field, which is supported by the modified Resistively Shunted Junction model and Transmission Electron Microscopy studies.Abstract:
Typically, topological superconductivity is reachable via proximity effect by a direct deposition of superconductor (S) on top of a topological insulator (TI) surface. Here, the double critical current in the Josephson junctions based on the topological insulator is observed in the fabricated planar Superconducting Quantum Interference Devicea. By measuring critical currents as a function of temperature and magnetic field, it is shown that the second critical current stems from the intrinsic superconductivity of the S–TI interface, which is supported by the modified Resistively Shunted Junction model and Transmission Electron Microscopy studies. This complex structure of the interface should be taken into account when the technological process involves Ar‐plasma cleaning.read more
Citations
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Controlling I-V Hysteresis in Al/Pt Bilayer Symmetric SQUIDs at millikelvin Temperatures
Dmitry S. Yakovlev,I.A. Nazhestkin,N. G. Ismailov,S. V. Egorov,Vladimir Antropov,V. L. Gurtovoi +5 more
TL;DR: In this paper , a superconducting quantum interference devices (SQUIDs) based on a new bilayer material was used for the ultra-sensitive detection of magnetic momentum at temperatures down to milliKelvin range.
Journal ArticleDOI
Contribution of Processes in SN Electrodes to the Transport Properties of SN-N-NS Josephson Junctions
V. I. Ruzhickiy,S. V. Bakurskiy,M. Yu. Kupriyanov,Nikolay V. Klenov,I. Soloviev,Vasily S. Stolyarov,Alexander A. Golubov +6 more
TL;DR: In this article , a theoretical study of electronic transport in planar Josephson superconductor-normal metal-superconductor (SN-N-NS) bridges with arbitrary transparency of the interfaces is presented.
Vanadium-Containing Planar Heterostructures Based on Topological Insulators
Journal ArticleDOI
Vanadium-Containing Planar Heterostructures Based on Topological Insulators
TL;DR: In this paper , a method has been demonstrated to control the Dirac point shift in the k space, which is a length measure of an exotic flat band appearing upon the formation of domain walls on the surface of antiferromagnetic topological insulators.
References
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Colloquium: Topological insulators
M. Z. Hasan,Charles L. Kane +1 more
TL;DR: In this paper, the theoretical foundation for topological insulators and superconductors is reviewed and recent experiments are described in which the signatures of topologically insulators have been observed.
Journal ArticleDOI
Topological insulators and superconductors
Xiao-Liang Qi,Shou-Cheng Zhang +1 more
TL;DR: Topological superconductors are new states of quantum matter which cannot be adiabatically connected to conventional insulators and semiconductors and are characterized by a full insulating gap in the bulk and gapless edge or surface states which are protected by time reversal symmetry.
Journal ArticleDOI
2D materials and van der Waals heterostructures
TL;DR: Two-dimensional heterostructures with extended range of functionalities yields a range of possible applications, and spectrum reconstruction in graphene interacting with hBN allowed several groups to study the Hofstadter butterfly effect and topological currents in such a system.
Journal ArticleDOI
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator
Liang Fu,Charles L. Kane +1 more
TL;DR: It is shown that linear junctions between superconductors mediated by the topological insulator form a nonchiral one-dimensional wire for Majorana fermions, and that circuits formed from these junctions provide a method for creating, manipulating, and fusing Majorana bound states.
Journal ArticleDOI
One-dimensional electrical contact to a two-dimensional material.
Lei Wang,Inanc Meric,Pinshane Y. Huang,Qun Gao,Yuanda Gao,Helen Tran,Takashi Taniguchi,Kenji Watanabe,Luis M. Campos,David A. Muller,Jing Guo,Philip Kim,James Hone,Kenneth L. Shepard,Cory Dean,Cory Dean +15 more
TL;DR: In graphene heterostructures, the edge-contact geometry provides new design possibilities for multilayered structures of complimentary 2D materials, and enables high electronic performance, including low-temperature ballistic transport over distances longer than 15 micrometers, and room-tem temperature mobility comparable to the theoretical phonon-scattering limit.
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