Published May 1, 1986 | Version v1
Journal article Metadata-only

Anderson localization and breakdown of hydrodynamics in random ferromagnets

Creators

  • 1. Physics Department, University of California, Los Angeles, Los Angeles, California 90024

Description

The dynamic structure factor of Heisenberg magnets with weak randomness is computed. Under circumstances which are explained in detail, we find failure of hydrodynamic theory in the longitudinal structure factor due to localization of spin waves. Localization induces a power-law dependence on q and ω for the neutron scattering line shape near magnetic Bragg spots. The exponent describing the power law is related to the correlation-length exponent of Anderson localization. Random anisotropy magnets appear to be promising candidates for experimental investigations

Additional details

Publishing Information

Journal Title
Phys. Rev., B: Condens. Matter
Journal Volume
33
Journal Issue
9
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
6541-6544
ISSN
0163-1829
CODEN
PRBMD

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17074770
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANISOTROPY; FERROMAGNETIC MATERIALS; HEISENBERG MODEL; NEUTRON DIFFRACTION; RANDOMNESS; STRUCTURE FACTORS; SYMMETRY BREAKING
Descriptors DEC
COHERENT SCATTERING; CRYSTAL MODELS; DIFFRACTION; MAGNETIC MATERIALS; MATERIALS; MATHEMATICAL MODELS; SCATTERING