Conductance fluctuations in mesoscopic superconductors

Bruun, J. T. and Hui, V. C. and Lambert, Colin (1994) Conductance fluctuations in mesoscopic superconductors. Physica B: Condensed Matter, 194-19 (2). pp. 1623-1624. ISSN 0921-4526

Abstract

The conductance fluctuations deltaG of superconducting squares are examined. In the diffusive and strongly disordered regimes, deltaG increases as the superconducting order parameter DELTA is increased from zero, reaching a maximum when the superconducting coherence length is of order the localisation length of the normal background. In weakly disordered systems, deltaG decreases monotonically with increasing DELTA.