@article{oai:niigata-u.repo.nii.ac.jp:00002113,
 author = {Yamada, Takemi and Ishizuka, Jun and Ono, Yoshiaki},
 issue = {4},
 journal = {Journal of the Physical Society of Japan, Journal of the Physical Society of Japan},
 month = {Mar},
 note = {The electronic states and superconductivity in iron pnictides are studied on the basis of the 16 band d-p model which includes both the onsite Coulomb interaction between Fe d electrons and the intersite one between Fe d and pnictogen p electrons. The model well accounts for experimentally observed two fluctuations: the d-d interaction-enhanced antiferromagnetic (AFM) fluctuation and the d-p interaction-enhanced ferro-orbital (FO) fluctuation responsible for the C_<66> elastic softening. The AFM fluctuation induces the repulsive pairing interaction for q ～  Q_<AF> while the FO does the attractive one for q ～ 0 resulting in the s_±-wave superconductivity where the two fluctuations cooperatively enhance the superconducting transition temperature T_c without any competition by virtue of the q-space segregation.},
 pages = {043704-1--043704-4},
 title = {A High-T_c Mechanism of Iron Pnictide Superconductivity due to Cooperation of Ferro-orbital and Antiferromagnetic Fluctuations},
 volume = {83},
 year = {2014}
}