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Title: Inhomogeneous Low Frequency Spin Dynamics in La{sub 1.65}Eu{sub 0.2}Sr{sub 0.15}CuO{sub 4}

We report Cu and La nuclear magnetic resonance measurements in the title compound that reveal an inhomogeneous glassy behavior of the spin dynamics. A low temperature peak in the La spin lattice relaxation rate and the ''wipeout'' of Cu intensity both arise from these slow electronic spin fluctuations that reveal a distribution of activation energies. Inhomogeneous slowing of spin fluctuations appears to be a general feature of doped lanthanum cuprate. (c) 2000 The American Physical Society.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [4] ;  [5]
  1. Condensed Matter and Thermal Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. (Korea, Republic of)
  3. II. Physikalisches Institut, Universitaet zu Koeln, (Germany)
  4. (France)
  5. Laboratoire de Chimie des Solides, Universite Paris-Sud, 91405 Orsay Cedex, (France)
Publication Date:
OSTI Identifier:
20217148
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 85; Journal Issue: 3; Other Information: PBD: 17 Jul 2000
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LANTHANUM OXIDES; EUROPIUM OXIDES; STRONTIUM OXIDES; COPPER OXIDES; NUCLEAR MAGNETIC RESONANCE; SPIN-LATTICE RELAXATION; MAGNETIZATION; EXPERIMENTAL DATA