Microwave surface impedance of proximity-coupled superconducting (Nb)/spin-glass (CuMn) bilayers

Article

关键词: PARALLEL-PLATE RESONATOR;    SPIN-GLASS;    TRANSITION-TEMPERATURE;    THIN-FILMS;    MULTILAYERS;    NIOBIUM;   

DOI  :  10.1103/PhysRevB.59.4455

来源: SCIE

【 摘 要 】

The surface impedance of Nb/CuMn (superconducting/spin-glass) bilayers has been measured at 10 GHz with the parallel plate resonator technique to obtain information about the exotic behavior of the order parameter in superconducting/magnetic proximity systems. The data strongly differ from the superconducting/normal-metal case, showing the magnetic nature of the CuMn layer, which acts as a weak ferromagnet. The results ate described in the framework of two models for the electrodynamics of superconducting/ferromagnetic (S/M) bilayers characterized by a proximity-coupling length scale which is independent of temperature.

【 授权许可】

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