Interband pairing in multiorbital systems

Journal Article · Thu Jan 01 04:00:00 EST 2009 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.80.104507· OSTI ID:971237

Moreo, Adriana ^[1]; Daghofer, Maria ^[1]; Nicholson, Andrew D ^[1]; Dagotto, Elbio R ^[1]

---

1. ORNL

The discovery of high-Tc superconductivity in the pnictides, materials with a Fermi surface determined by several bands, highlights the need to understand how superconductivity arises in multiband systems. In this effort, using symmetry considerations and mean-field approximations, we discuss how strong hybridization among orbitals may lead to both intraband and interband pairings, and we present calculations of the spectral functions to guide the experimental search for this kind of state.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 971237
• Journal Information: Physical Review B, Journal Name: Physical Review B Journal Issue: 10 Vol. 80; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APPROXIMATIONS
FERMI LEVEL
HYBRIDIZATION
PNICTIDES
SPECTRAL FUNCTIONS
SUPERCONDUCTIVITY
SYMMETRY