TY - JOUR
T1 - Possible odd-frequency pairing in quasi-one-dimensional organic superconductors (TMTSF)2X
AU - Shigeta, Keisuke
AU - Onari, Seiichiro
AU - Tanaka, Yukio
PY - 2013/10
Y1 - 2013/10
N2 - In order to clarify a pairing symmetry in quasi-one-dimensional organic superconductors (TMTSF)2X, we investigate the superconducting state in the extended Hubbard model on a quarter-filled square lattice within the random phase approximation. We find that a competition among four pairing states including odd-frequency pairing occurs in the quasi-one-dimensional system where the 2kF spin fluctuation coexists with the 2kF charge fluctuation. We suggest that the odd-frequency pairing can appear in a realistic parameter.
AB - In order to clarify a pairing symmetry in quasi-one-dimensional organic superconductors (TMTSF)2X, we investigate the superconducting state in the extended Hubbard model on a quarter-filled square lattice within the random phase approximation. We find that a competition among four pairing states including odd-frequency pairing occurs in the quasi-one-dimensional system where the 2kF spin fluctuation coexists with the 2kF charge fluctuation. We suggest that the odd-frequency pairing can appear in a realistic parameter.
KW - Extended Hubbard model
KW - Organic superconductor
KW - Superconductivity
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U2 - 10.7566/JPSJ.82.104702
DO - 10.7566/JPSJ.82.104702
M3 - Article
AN - SCOPUS:84885004933
SN - 0031-9015
VL - 82
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 10
M1 - 104702
ER -