Vortex telegraph noise in high magnetic fields

Article

关键词: HIGH-TEMPERATURE SUPERCONDUCTORS;    BOSE GLASS SUPERCONDUCTOR;    LOCALIZATION;    RELAXATION;    DISORDER;    QUANTUM;   

DOI  :  10.1103/PhysRevB.56.R11431

来源: SCIE

【 摘 要 】

We cool untwinned single crystals of YBa2Cu3O7-delta with columnar defects down to liquid-He temperatures and study the development of pinning in the strongly interacting Bose glass with local Hall-probe magnetometry. We are able to resolve discrete fluctuations in the local vortex density resulting from reconfigurations of the vortex assembly between metastable states nearby in energy. By varying the applied magnetic field, and therefore the mean vortex density, we gain microscopic information about vortex-vortex interactions. [S0163-1829(97)52142-4].

【 授权许可】

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