ORBITAL PARAMAGNETISM OF ELECTRONS IN PROXIMITY TO A SUPERCONDUCTOR

Authors
Citation
C. Bruder et Y. Imry, ORBITAL PARAMAGNETISM OF ELECTRONS IN PROXIMITY TO A SUPERCONDUCTOR, Physical review letters, 80(26), 1998, pp. 5782-5785
Citations number
15
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
80
Issue
26
Year of publication
1998
Pages
5782 - 5785
Database
ISI
SICI code
0031-9007(1998)80:26<5782:OPOEIP>2.0.ZU;2-J
Abstract
We consider the magnetic response of a normal layer (N) coating a supe rconducting cylinder (S). The diamagnetic response of the normal layer (proximity effect) is related to the formation of Andreev levels. At low energies, the density of such states goes linearly to zero which e nhances the various scattering mean-free paths. As a consequence, the low-energy glancing states, which can skip along the outer boundary, c an have relatively large magnetic moments that lead to a low-temperatu re paramagnetic correction to the Meissner result. [S0031-9007(98)0649 7-7].