English

Recent developments in unconventional superconductivity theory

Superconductivity 2015-05-13 v4 Materials Science

Abstract

The review of recent developments in the unconventional superconductivity theory is given. In the fist part I consider the physical origin of the Kerr rotation polarization of light reflected from the surface of superconducting Sr2RuO4Sr_2RuO_4. Then the comparison of magneto-optical responses in superconductors with orbital and spin spontaneous magnetization is presented. The latter result is applied to the estimation of the magneto-optical properties of neutral superfluids with spontaneous magnetization. The second part is devoted to the natural optical activity or gyrotropy properties of noncentrosymmetric metals in their normal and superconducting states. The temperature behavior of the gyrotropy coefficient is compared with the temperature behavior of paramagnetic susceptibility determining the noticeable increase of the paramagnetic limiting field in noncentrosymmetric superconductors. In the last chapter I describe the order parameter and the symmetry of superconducting state in the itinerant ferromagnet with orthorhombic symmetry. Finally the Josephson coupling between two adjacent ferromagnet superconducting domains is discussed.

Keywords

Cite

@article{arxiv.0906.5132,
  title  = {Recent developments in unconventional superconductivity theory},
  author = {V. P. Mineev},
  journal= {arXiv preprint arXiv:0906.5132},
  year   = {2015}
}

Comments

15 pages

R2 v1 2026-06-21T13:18:39.889Z