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- W2883308485 endingPage "1158" @default.
- W2883308485 startingPage "1141" @default.
- W2883308485 abstract "Topological materials, hosting topological nontrivial electronic band, have attracted widespread attentions. As an application of topology in physics, the discovery and study of topological materials not only enrich the existing theoretical framework of physics, but also provide fertile ground for investigations on low energy excitations, such as Weyl fermions and Majorana fermions, which have not been observed yet as fundamental particles. These quasiparticles with exotic physical properties make topological materials the cutting edge of scientific research and a new favorite of high tech. As a typical example, Majorana fermions, predicted to exist in the edge state of topological superconductors, are proposed to implement topological error-tolerant quantum computers. Thus, the detection of topological superconductivity has become a frontier in condensed matter physics and materials science. Here, we review a way to detect topological superconductivity triggered by the hard point contact: tip-induced superconductivity (TISC) and tip-enhanced superconductivity (TESC). The TISC refers to the superconductivity induced by a non-superconducting tip at the point contact on non-superconducting materials. We take the elaboration of the chief experimental achievement of TISC in topological Dirac semimetal Cd3As2 and Weyl semimetal TaAs as key components of this article for detecting topological superconductivity. Moreover, we also briefly introduce the main results of another exotic effect, TESC, in superconducting Au2Pb and Sr2RuO4 single crystals, which are respectively proposed as the candidates of helical topological superconductor and chiral topological superconductor. Related results and the potential mechanism are conducive to improving the comprehension of how to induce and enhance the topological superconductivity." @default.
- W2883308485 created "2018-08-03" @default.
- W2883308485 creator A5032764121 @default.
- W2883308485 creator A5075606222 @default.
- W2883308485 creator A5083142276 @default.
- W2883308485 date "2018-09-01" @default.
- W2883308485 modified "2023-10-17" @default.
- W2883308485 title "Tip-induced or enhanced superconductivity: a way to detect topological superconductivity" @default.
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