Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1997-09-12
EUROPHYSICS LETTERS,43(#3)326,1998
Physics
Condensed Matter
Strongly Correlated Electrons
9 pages, 4 figures, REVTEX
Scientific paper
10.1209/epl/i1998-00360-9
We consider the contribution of magnetic impurities to the nuclear magnetic susceptibility $\chi$ and to the specific heat $C$ of a metal. The impurity contribution to the magnetic susceptibility has a $1/T^2$ behaviour, and the impurity contribution to the specific heat has a $1/T$ behaviour, both in an extended region of temperatures $T$. In the case of a dirty metal the RKKY interaction of nuclear spins and impurity spins is suppressed for low temperatures and the main contribution to $C$ and $\chi$ is given by their dipole-dipole interaction.
Dyugaev A. M.
Fulde Peter
Kladko Konstantin
Ovchinnikov Yu N.
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