Superconductivity and Jahn-Teller Distortion in s±-Wave Iron-Based Superconductors

Autor:	Sukadev Sahoo, P.K. Parida, B. Pradhan
Rok vydání:	2021
Předmět:	Superconductivity Physics Condensed matter physics 010308 nuclear & particles physics Jahn–Teller effect General Physics and Astronomy Function (mathematics) 01 natural sciences Symmetry (physics) Pairing Distortion 0103 physical sciences S-wave Density of states 010306 general physics
Zdroj:	Brazilian Journal of Physics. 51:393-400
ISSN:	1678-4448 0103-9733
DOI:	10.1007/s13538-020-00827-x
Popis:	We discuss here a few possibilities of gap structure and pairing mechanism for iron-based superconductors with more than one orbital symmetry contributing to the pairing. We have proposed a two-orbital tight-binding model for the coexistence of superconductivity and Jahn-Teller distortion in s±-wave pairing symmetry of the form coskx × cosky in the mean-field approximation. The self-consistent gap equations are calculated by Zubarev’s double-time Green’s function technique which are solved numerically and self-consistently. The specific heat, density of states and band energies are also studied for the proposed model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee1ef1260f9089e3ca578ffce21c4909 https://doi.org/10.1007/s13538-020-00827-x Zobrazit plný text záznamu Full text from SpringerLink