Periodic arrays of pinning centers in thin vanadium films

Vitali Metlouchko; U. Welp; G. Crabtree; Zhao Zhang; Steven R. J. Brueck; B. Watkins; L. E. DeLong; B. Ilic; K. Chung; Peter J. Hesketh

doi:10.1117/12.332447

9 December 1998 Periodic arrays of pinning centers in thin vanadium films

Vitali Metlouchko, U. Welp, G. Crabtree, Zhao Zhang, Steven R. J. Brueck, B. Watkins, L. E. DeLong, B. Ilic, K. Chung, Peter J. Hesketh

Author Affiliations +

Proceedings Volume 3480, Superconducting Superlattices II: Native and Artificial; (1998) https://doi.org/10.1117/12.332447
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

Commensurability effects between the superconducting flux line lattice and a square lattice of submicron holes in 1500 angstrom vanadium films were studied by atomic force microscopy, DC magnetization, AC susceptibility, magnetoresistivity and I-V measurements. Peaks in the magnetization and critical current at matching fields are found to depend nonlinearly upon the value of external AC field or current, as well as the IR symmetry of the flux line lattice.

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Vitali Metlouchko, U. Welp, G. Crabtree, Zhao Zhang, Steven R. J. Brueck, B. Watkins, L. E. DeLong, B. Ilic, K. Chung, and Peter J. Hesketh "Periodic arrays of pinning centers in thin vanadium films", Proc. SPIE 3480, Superconducting Superlattices II: Native and Artificial, (9 December 1998); https://doi.org/10.1117/12.332447

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