English

Impurity induced double transitions for accidentally degenerate unconventional pairing states

Superconductivity 2021-01-20 v1 Strongly Correlated Electrons

Abstract

Non-magnetic impurities can lift the accidental degeneracy of unconventional pairing states, such as the (d+ig)(d + i g)-wave state recently proposed for Sr2_2RuO4_4. This type of effect would lead to a superconducting double transition upon impurity doping. In a model calculation it is shown how this behavior depends on material parameters and how it could be detected.

Keywords

Cite

@article{arxiv.2009.10089,
  title  = {Impurity induced double transitions for accidentally degenerate unconventional pairing states},
  author = {Bastian Zinkl and Manfred Sigrist},
  journal= {arXiv preprint arXiv:2009.10089},
  year   = {2021}
}

Comments

5 pages, 3 figures