High temperature spin-triplet topological superconductivity in K2Cr3As3

Spin-triplet superconductors are novel materials capable of harboring Majorana bound states that can be used in topological quantum computing. However, such bulk materials are still rare. Here we review the results that established K2Cr3As3 as a spin-triplet superconductor with transition temperatur...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2545; no. 1; pp. 012001 - 12007
Main Author Zheng, Guo-qing
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2023
Subjects
Critical point
Ferromagnetism
High temperature
Physics
Quantum computing
Superconductivity
Superconductors
Topology
Transition temperature
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Summary:Spin-triplet superconductors are novel materials capable of harboring Majorana bound states that can be used in topological quantum computing. However, such bulk materials are still rare. Here we review the results that established K2Cr3As3 as a spin-triplet superconductor with transition temperature Tc as high as 6.5 K. We focus on the multiple-phases feature, and its exquisite distance to a ferromagnetic quantum critical point which is likely responsible for the high Tc. We touch on the topological aspects of the superconducting state, and suggest that it is a new route to the technical implementation using a topological spin-triplet superconductor at the highest temperature ever.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2545/1/012001