Unconventional pairing originating from disconnected Fermi surfaces in superconducting LaFeAsO${}_{1-x}$F${}_x$}

Kazuhiko Kuroki, Seiichiro Onari, Ryotaro Arita +4

For a newly discovered iron-based high $T_c$ superconductor LaFeAsO${}_{1-x}$F${}_x$, we have constructed a minimal model, where inclusion of all the five Fe $d$ bands is found to be n…