Inhomogeneous Low Frequency Spin Dynamics in La_{1.65}Eu_{0.2}Sr_{0.15}CuO_4

Preprint

13 March 2000

preprint
Published by arXiv in arXiv

Abstract

We report Cu and La nuclear magnetic resonance (NMR) 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.

Keywords

MAGNETIC RESONANCE
SPIN FLUCTUATIONS
INHOMOGENEOUS LOW
ELECTRONIC SPIN
FREQUENCY SPIN
SPIN DYNAMICS
REPORT CU
CUO_4

All Related Versions

Version 1, 1999-11-17, ArXiv
Version 2, 2000-03-13, ArXiv
Version 3, 2000-06-13, ArXiv
Published version: Physical Review Letters, 85 (3), 642.

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