Temperature dependences of the dc magnetic susceptibility of in different magnetic fields: (△); (◻); (ZFC—○, FC—●).
Magnetization versus field for at .
LSDA density of states of paramagnetic LaFeAsO near for the undoped compound (solid line) and for LaFeAsO with oxygen replaced by virtual atoms with (dash-dot line) and (dashed line). The calculations were performed with a fine energy mesh . The Fermi level position (at ) is marked by a vertical line.
Magnetic moment induced in the field as a function of volume with lattice parameters , , and fixed to their experimental ambient pressure values for undoped LaFeAsO. Dashed vertical lines denote the computed LSDA equilibrium volume, the experimental volume and the computed GGA equilibrium volume of LaFeAsO (from left to right).
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