Revealing Intrinsic Superconductivity of the Nb/BiSbTe 2 Se Interface
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 fabricat...
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| Published in | Advanced functional materials Vol. 32; no. 49 |
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| Main Authors | , , , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
01.12.2022
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| Online Access | Get full text |
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| Abstract | 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. |
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| AbstractList | 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. |
| Author | Babich, Ian Kudriashov, Andrei Shishkin, Andrey G. Kozlov, Sergei N. Stolyarov, Vasily S. Khestanova, Ekaterina Hovhannisyan, Razmik A. Vyalikh, Denis V. Fedorov, Alexander Kupriyanov, Mikhail Yu |
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Typically, topological superconductivity is reachable via proximity effect by a direct deposition of superconductor (S) on top of a topological... |
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| Title | Revealing Intrinsic Superconductivity of the Nb/BiSbTe 2 Se Interface |
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