Phase diagram of YBa2Cu3O7−y at T<T c according to transverse nuclear relaxation data for Cu(2)
作者： M. V. Eremin , Yu. A. Sakhratov , A. V. Savinkov , A. V. Dooglav , I. R. Mukhamedshin
DOI: 10.1134/1.1387523
关键词: Relaxation (NMR) 、 Physics 、 Phase (matter) 、 Superconductivity 、 Maxima 、 Magnetic field 、 Transverse plane 、 Condensed matter physics 、 Phase diagram 、 Perpendicular
摘要: Two maxima in transverse relaxation rate of Cu(2) nuclei YBa$_2$Cu$_3$O$_{7-y}$ are observed, at T = 35 K and 47 K. Comparison the $^{63}$Cu(2) $^{65}$Cu(2) rates indicates magnetic character relaxation. The enhancement fluctuating local fields perpendicular to CuO$_2$ planes is connected with critical fluctuations orbital currents. Maximum appearance inhomogeneous supeconducting phase. Together data published date, our experimental results allow suggest a qualitatively new phase diagram superconducting
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