Published January 1999 | Version v1
Journal article Metadata-only

Equilibrium Random-Field Ising Critical Scattering in the Antiferromagnet Fe0.93Zn0.07F2

Creators

  • 1. Department of Physics, University of California, Santa Cruz, California 95064 (United States)
  • 2. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393 (United States)

Description

It has long been believed that equilibrium random-field Ising model (RFIM) critical scattering studies are not feasible in dilute antiferromagnets close to and below Tc(H) because of severe nonequilibrium effects. The high magnetic concentration Ising antiferromagnet Fe0.93 Zn0.07 F2 , however, does provide equilibrium behavior. We have employed scaling techniques to extract the universal equilibrium scattering line shape, critical exponents ν=0.87±0.07 and η=0.20±0.05 , and amplitude ratios of this RFIM system. copyright 1999 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
82
Journal Issue
2
Journal Page Range
p. 426-429
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
30010883
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETIC MATERIALS; HFIR REACTOR; IRON FLUORIDES; ISING MODEL; NEUTRON DIFFRACTION; ORDER-DISORDER TRANSFORMATIONS; RANDOMNESS; SCALING LAWS; ZINC ADDITIONS
Descriptors DEC
COHERENT SCATTERING; CRYSTAL MODELS; DIFFRACTION; ENRICHED URANIUM REACTORS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IRON COMPOUNDS; IRRADIATION REACTORS; ISOTOPE PRODUCTION REACTORS; MAGNETIC MATERIALS; MATERIALS; MATHEMATICAL MODELS; PHASE TRANSFORMATIONS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SCATTERING; TANK TYPE REACTORS; TEST FACILITIES; TEST REACTORS; THERMAL REACTORS; TRANSITION ELEMENT COMPOUNDS; WATER COOLED REACTORS; WATER MODERATED REACTORS