Interplay between magnetism and superconductivity in Nb/Co multilayers

Authors
Ogrin, FY Lee, SL Hillier, AD Mitchell, A Shen, TH
Citation
Fy. Ogrin et al., Interplay between magnetism and superconductivity in Nb/Co multilayers, PHYS REV B, 62(9), 2000, pp. 6021-6026
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
9
Year of publication
2000
Pages
6021 - 6026
Database
ISI
SICI code
0163-1829(20000901)62:9<6021:IBMASI>2.0.ZU;2-I
Abstract
We have used torque magnetometry to investigate the influence of magnetic s pacer layers on the superconductivity in Nb/Co multilayers. Compared to sim ilar systems which have nonmagnetic spacer layers, the samples exhibit two dimensional superconductivity for relatively thin magnetic layer thicknesse s d(Co), reflecting the effects of magnetic pair breaking. Moreover, the tr ansition temperature to the superconducting state T-c shows a nonmonatonic dependence on d(Co), which we examine within the framework of recent theori es.