Inhomogeneous Low Frequency Spin Dynamics in La1.65Eu0.2Sr0.15CuO4

N. J. Curro, P. C. Hammel, B. J. Suh, M. Hücker, B. Büchner, U. Ammerahl, and A. Revcolevschi
Phys. Rev. Lett. 85, 642 – Published 17 July 2000
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Abstract

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.

  • Received 22 November 1999

DOI:https://doi.org/10.1103/PhysRevLett.85.642

©2000 American Physical Society

Authors & Affiliations

N. J. Curro1, P. C. Hammel1, B. J. Suh1,2, M. Hücker3, B. Büchner3, U. Ammerahl3,4, and A. Revcolevschi4

  • 1Condensed Matter and Thermal Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
  • 2Division of Natural Science, The Catholic University of Korea, Korea
  • 3II. Physikalisches Institut, Universität zu Köln, Germany
  • 4Laboratoire de Chimie des Solides, Université Paris-Sud, 91405 Orsay Cedex, France

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Vol. 85, Iss. 3 — 17 July 2000

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