Abstract
A sharp kink in the temperature dependence of the electronic spin-lattice relaxation rate near 200 K was found in the high-temperature superconductors YBa2Cu4O8 and YBa2Cu3O6+x . The effect is correlated with opening of a spin gap and microscopic phase separation.
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Pis’ma Zh. Éksp. Teor. Fiz. 69, No. 8, 567–572 (25 April 1999)
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Atsarkin, V.A., Vasneva, G.A., Demidov, V.V. et al. Anomalies of the electronic spin-lattice relaxation of Gd3+ in YBa2Cu4O8 and YBa2Cu3O6+x near 200 K. Jetp Lett. 69, 610–615 (1999). https://doi.org/10.1134/1.567968
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DOI: https://doi.org/10.1134/1.567968