Enhanced pinning in superconducting thin films with graded pinning landscapes
Journal article, 2013

A graded distribution of antidots in superconducting a-Mo79Ge21 thin films has been investigated by magnetization and magneto-optical imaging measurements. The pinning landscape has maximum density at the sample border, decreasing linearly towards the center. Its overall performance is noticeably superior than that for a sample with uniformly distributed antidots: For high temperatures and low fields, the critical current is enhanced, whereas the region of thermomagnetic instabilities in the field-temperature diagram is significantly suppressed. These findings confirm the relevance of graded landscapes on the enhancement of pinning efficiency, as recently predicted by Misko and Nori.
Show all persons

Published in

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 102 Issue 21 art. no 212601

Categorizing

Subject Categories (SSIF 2011)

Other Engineering and Technologies

Identifiers

DOI

10.1063/1.4807848

More information

Latest update

5/29/2018