Effects of strain in multiorbital superconductors: The case of Sr_{2}RuO_{4}

Autor: Sophie Beck, Alexander Hampel, Manuel Zingl, Carsten Timm, Aline Ramires
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Physical Review Research, Vol 4, Iss 2, p 023060 (2022)
Druh dokumentu: article
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.4.023060
Popis: Uniaxial-strain experiments have become a powerful tool to unveil the character of unconventional phases of electronic matter. Here, we propose a combination of the superconducting fitness analysis and density functional theory calculations to dissect the effects of strain in complex multiorbital quantum materials from a microscopic perspective. We apply this framework to the superconducting state of Sr_{2}RuO_{4} and argue that the recently proposed orbitally antisymmetric spin triplet order parameter candidate has unique signatures under strain which are in agreement with recent observations. In particular, we can account for the asymmetric splitting of the critical temperatures for compressive strain along the 〈100〉 direction and the reduction of the critical temperature for compressive strain along the 〈001〉 and 〈110〉 directions with a single free parameter.
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