Title

Finite bias tunneling anomaly in paramagnetically limited Be films

Document Type

Article

Publication Date

1-1-2000

Abstract

We report measurements of the finite bias anomaly in the tunneling density of states of homogeneously disordered superconducting Be films above the paramagnetic limit. To date the anomaly has only been reported in granular Al films and is believed to be a manifestation of a non-perturbative BCS fluctuation mechanism that forms a pseudo-gap near the Zeeman energy. We show that the magnetic field dependence of the anomaly energy in Be films is in good agreement with the recent theory of Aleiner and Altshuler provided the proper normal state Lande g-factor is used. © 2000 Elsevier Science B.V. All rights reserved.

Publication Source (Journal or Book title)

Physica B: Condensed Matter

First Page

673

Last Page

674

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