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Pseudogap behavior of nuclear spin relaxation in high-T c superconductors in terms of phase separation

2003/12/31 by L. P. Gor’kov, L. P. Gor'kov, G. B. Teitel'baum +1
Engineering · Materials Science · Physics and Astronomy · #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #Superconducting Materials and Applications #cond-mat.str-el

paper · pdf · doi:10.1134/1.1808849

5 pages, 3 figures; some comments and references added; accepted for publication in JETP Letters

arxiv created 2004/07/09 · openalex publication_date 2004/08/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analyze anew experiments on the NMR in cuprates and find an important information on their phase separation and its strip character hidden in the dependence of 1/ 63 T 1 on the degree of doping. In a broad class of materials, 1/ 63 T 1 is the sum of two terms: the temperature-independent one attributed to “ incommensurate” strips that occur at external doping and a “universal” temperature-dependent term ascribed to moving metallic and antiferromagnetic subphases. We argue that the frustrated first-order phase transition in a broad temperature interval bears a dynamical character.

Citations