The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe

Ptok, A.; Kapcia, K.; Piekarz, P.; Oleś, A.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

The ab initio study of unconventional superconductivity in CeCoIn₅ and FeSe

MPS-Authors

Oleś, A.
Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Ptok, A., Kapcia, K., Piekarz, P., & Oleś, A. (2017). The ab initio study of unconventional superconductivity in CeCoIn₅ and FeSe. New Journal of Physics, 19: 063039.

Cite as: https://hdl.handle.net/21.11116/0000-000E-D2B0-D

Abstract

The electronic structure and shape of the Fermi surface are known to be of fundamental importance for the superconducting instability in real materials. We demonstrate that such an instability may be explored by static Cooper pair susceptibility renormalized by pairing interaction and present an efficient method of its evaluation using Wannier orbitals derived from ab initio calculation. As an example, this approach is used to search for an unconventional superconducting phase of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) type in a heavy-fermion compound CeCoIn5 and an iron-based superconductor FeSe. The results suggest that the FFLO superconducting phase occurs at finite magnetic field in both materials.