Glassy spin dynamics in a stripe-ordered cuprate system

Nicholas J. Curro

doi:10.1117/12.537625

25 May 2004 Glassy spin dynamics in a stripe-ordered cuprate system

Nicholas J. Curro

Proceedings Volume 5469, Fluctuations and Noise in Materials; (2004) https://doi.org/10.1117/12.537625
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

Abstract

The unusual glassy dynamics exhibited by the spin fluctuations in the stripe-ordered cuprates can be quantitatively measured by La nuclear magnetic resonance. We analyze the spin lattice relaxation data in the low temperature tetragonal structural phase of La_1.8-xEu_0.2Sr_xCuO₄ and find that there is a distribution of local fluctuations times, with a Vogel-Fulcher temperature dependence. Furthermore, the data are consistent with a stretched exponential form for the dynamical spin correlation function, typical of glassy systems.

Citation Download Citation

Nicholas J. Curro "Glassy spin dynamics in a stripe-ordered cuprate system", Proc. SPIE 5469, Fluctuations and Noise in Materials, (25 May 2004); https://doi.org/10.1117/12.537625

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