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

Journal Article · Mon Jul 17 00:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.85.642· OSTI ID:20217148

Curro, N J ^[1]; Hammel, P C ^[1]; Suh, B J ^[1]; Huecker, M ^[2]; Buechner, B ^[2]; Ammerahl, U ^[2]; Revcolevschi, A ^[3]

---

1. Condensed Matter and Thermal Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. II. Physikalisches Institut, Universitaet zu Koeln, (Germany)
3. Laboratoire de Chimie des Solides, Universite Paris-Sud, 91405 Orsay Cedex, (France)

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.

• OSTI ID: 20217148
• Journal Information: Physical Review Letters, Vol. 85, Issue 3; Other Information: PBD: 17 Jul 2000; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
LANTHANUM OXIDES
EUROPIUM OXIDES
STRONTIUM OXIDES
COPPER OXIDES
NUCLEAR MAGNETIC RESONANCE
SPIN-LATTICE RELAXATION
MAGNETIZATION
EXPERIMENTAL DATA