The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe
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 eff...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aa6d9d |
| _version_ | 1797750866564874240 |
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| author | Andrzej Ptok Konrad J Kapcia Przemysław Piekarz Andrzej M Oleś |
| author_facet | Andrzej Ptok Konrad J Kapcia Przemysław Piekarz Andrzej M Oleś |
| author_sort | Andrzej Ptok |
| collection | DOAJ |
| description | 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 CeCoIn _5 and an iron-based superconductor FeSe. The results suggest that the FFLO superconducting phase occurs at finite magnetic field in both materials. |
| first_indexed | 2024-03-12T16:39:03Z |
| format | Article |
| id | doaj.art-f9bdb62599f5416a8655a7fac2f1c005 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:39:03Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-f9bdb62599f5416a8655a7fac2f1c0052023-08-08T14:38:07ZengIOP PublishingNew Journal of Physics1367-26302017-01-0119606303910.1088/1367-2630/aa6d9dThe ab initio study of unconventional superconductivity in CeCoIn5 and FeSeAndrzej Ptok0https://orcid.org/0000-0002-5566-2656Konrad J Kapcia1https://orcid.org/0000-0001-8842-1886Przemysław Piekarz2Andrzej M Oleś3Institute of Physics, Maria Curie-Skłodowska University , Plac M. Skłodowskiej-Curie 1, PL-20031 Lublin, Poland; Institute of Nuclear Physics, Polish Academy of Sciences, ul. E. Radzikowskiego 152, PL-31342 Kraków, PolandInstitute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, PL-02668 Warsaw, PolandInstitute of Nuclear Physics, Polish Academy of Sciences, ul. E. Radzikowskiego 152, PL-31342 Kraków, PolandMax Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany; Marian Smoluchowski Institute of Physics, Jagiellonian University , ul. prof. S. Łojasiewicza 11, PL-30348 Kraków, PolandThe 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 CeCoIn _5 and an iron-based superconductor FeSe. The results suggest that the FFLO superconducting phase occurs at finite magnetic field in both materials.https://doi.org/10.1088/1367-2630/aa6d9dab initioDFTsuperconductivityFFLO phasepair susceptibility74.20.Pq |
| spellingShingle | Andrzej Ptok Konrad J Kapcia Przemysław Piekarz Andrzej M Oleś The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe New Journal of Physics ab initio DFT superconductivity FFLO phase pair susceptibility 74.20.Pq |
| title | The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe |
| title_full | The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe |
| title_fullStr | The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe |
| title_full_unstemmed | The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe |
| title_short | The ab initio study of unconventional superconductivity in CeCoIn5 and FeSe |
| title_sort | ab initio study of unconventional superconductivity in cecoin5 and fese |
| topic | ab initio DFT superconductivity FFLO phase pair susceptibility 74.20.Pq |
| url | https://doi.org/10.1088/1367-2630/aa6d9d |
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