Abstract
Abstract
Based on the London equation, we use a rotor-free vector potential A and current measurements by a SQUID, to determine the superconducting (SC) Pearl length Λ and coherence length ξ
0, of ultra-thin, ring shaped, MoSi films, as a function of thickness d and temperature T. We find that T
c
and ξ
0 are functions of d and both jump at
ξ
0
∼
d
∼
5
nm. At base temperature the SC stiffness, defined by
1
/
λ
2
=
1
/
(
Λ
d
)
, is an increasing function of T
c
. Similar behavior, known as the Uemura plot, exists in bulk layered superconductors, but with doping as an implicit parameter. We also provide the critical exponents of
Λ
(
T
)
.
Funder
Zuckerman STEM Leadership Program
Israeli Science Foundation
Subject
Materials Chemistry,Electrical and Electronic Engineering,Metals and Alloys,Condensed Matter Physics,Ceramics and Composites
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献