Physics – Condensed Matter – Superconductivity
Scientific paper
2008-11-19
J. Phys. Soc. Jpn. 78 (2009) 023703
Physics
Condensed Matter
Superconductivity
4 pages, 5 figures
Scientific paper
10.1143/JPSJ.78.023703
We study a microscopic mechanism of Fe-pnictide superconductor, considering the screening effects of Coulomb interaction in addition to the conventional spin-fluctuation mechanism. It is shown that, by electron doping, the transition temperature of superconductivity increases due to the "unscreening" effect even though the density of states decrease, while that of spin-density wave rapidly decreases due to breaking of nesting conditions. Our results give a clear interpretation to the mystery of interrelation between T_c and the density of states observed in the Fe-pnictide superconductors.
Fuseya Yuki
Kariyado Toshikaze
Ogata Masao
No associations
LandOfFree
Unscreening Effect on Fe-Pnictide Superconductor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Unscreening Effect on Fe-Pnictide Superconductor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unscreening Effect on Fe-Pnictide Superconductor will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-428973