Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1820187 | Physica C: Superconductivity and its Applications | 2008 | 8 Pages |
Abstract
We have applied polarized neutron reflectometry, and novel SQUID and vibrating reed magnetometry to probe a [Nb(23 nm)/Ni(5 nm)]5 multilayer (ML) whose superconducting state magnetic anisotropy is dominated by confined (in-plane) supercurrents in DC magnetic fields, H, applied nearly parallel to the ML plane. The upper critical field exhibits abrupt shifts (0.1-0.6 K) in near-parallel fields, but is field-independent for μ0H < 0.8 T when the ML is exactly aligned with the DC field, indicating suppression of orbital pairbreaking and the possible presence of unconventional superconducting pairing states.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
L.E. De Long, S.A. Kryukov, Amish G. Joshi, Wentao Xu, A. Bosomtwi, B.J. Kirby, M.R. Fitzsimmons,