Effect of sample topology on the critical fields of mesoscopic superconductors
Article Abstract:
The analysis of the measurements of the superconducting magnetic field-temperature (H-T) phase boundary of various types of mesoscopic aluminum structures reveal that these structures exhibit sample topology. Earlier it was believed that the H-T phase exerted no influence on the H-T phase boundary, which determines the superconducting features of a material. For mesoscopic samples, the sample topology is large and hence they exert significant influence on the H-T phase boundaries.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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Controlled multiple reversals of a ratchet effect
Article Abstract:
The inter-particle interactions in a chain of repelling particles captured by a ratchet potential could, in a controlled way, lead to multiple drift reversals, with the drift sign alternating from positive to negative as the number of particles per ratchet period changes from odd to even. It was found that the direction of the vortex drift does undergo multiple reversals as the vortex density is increased, in excellent agreement with the model predictions.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Symmetry-induced formation of antivortices in mesoscopic superconductors
Article Abstract:
Parameters of mesoscopic superconductors are discussed. The relationships between vortex and antivortex and symmetry are assessed.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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