Skip to content

Temperature dependence of magnetism near defects in SrB6

T. Jarlborg

cond-mat.mtrl-sciarXiv:cond-mat/0305327

Abstract

The T-dependence of magnetic moments in SrB6 is studied through spin-polarized band calculations for a supercell of Sr27B156 containing a B6 vacancy. The magnetic moment decays rather quickly with T despite the fact that only electronic Fermi-Dirac effects are included. This result and the T-dependence of moments near a La impurity can hardly explain the reports of a very high Curie temperature in hexaborides, but suggest that the magnetism is caused by some other type of impurity.

Create a lesson