Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: K1.00287 : Transport properties in magnetic Griffiths phases
Author:
We study the temperature dependence of the electrical
resistivity in the quantum Griffiths phases associated with
the ferromagnetic and antiferromagnetic quantum phase
transitions in itinerate systems.
The resistivity is calculated by means of the semi-classical
Boltzmann equation. We show that the contribution to the
resistivity due to the scattering by spin-fluctuations in rare
regions varies as $T^{\lambda}$ with the logarithmic correction
for both ferromagnetic and antiferromagnetic systems. Here
$\lambda$ is the usual Griffiths exponent which takes the
value $0$ at the critical point and increases with the
distance from the criticality. We also consider other
transport properties such as thermal resistivity, thermopower
and Peltier coefficient.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.K1.287
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