Field dependence of the intragrain superconductive transition in RuSr2EuCu2O8

Article

关键词: JOSEPHSON-JUNCTION ARRAYS;    PHYSICAL-PROPERTIES;    DC MAGNETIZATION;    RUSR2GDCU2O8;    FERROMAGNET;    DISORDER;    MODEL;    GLASS;   

DOI  :  10.1103/PhysRevB.65.174503

来源: SCIE

【 摘 要 】

A narrow intragrain phase-lock transition was observed in RuSr2EuCu2O8 under a magnetic field H up to a few Tesla. The corresponding transition temperature T-2 decreases rapidly (approximate to100 K/T at low fields) with H, indicating that the grains of RuSr2EuCu2O8 behave unlike a homogeneous bulk superconductor. Our data suggest that the bulk superconducting transition may occur on a length scale well below the grain size 2-6 mum.

【 授权许可】

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