Physics – Condensed Matter – Superconductivity
Scientific paper
2012-03-07
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1007/s10948-012-1517-1
The nonadiabatic Heisenberg model predicts a structural distortion in LiFeAs below a temperature higher than (or at least equal to) the superconducting transition temperature. Within this group-theoretical model, the reduction of the symmetry caused by the distortion is a prerequisite for the superconducting state in this compound and can be realized by a mere displacement of the iron atoms from their positions in the space group P4/nmm.
Krüger Ekkehard
Strunk Horst P.
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