Inverse Proximity Effect in Superconductor-ferromagnet Bilayer Structures

Journal Article · Mon Apr 05 00:00:00 EDT 2010 · Submitted to Physical Review Letters

OSTI ID:975042

Xia, Jing

Measurements of the polar Kerr effect using a zero-area-loop Sagnac magnetometer on Pb/Ni and Al/(Co-Pd) proximity-effect bilayers show unambiguous evidence for the 'inverse proximity effect,' in which the ferromagnet (F) induces a finite magnetization in the superconducting (S) layer. To avoid probing the magnetic effects in the ferromagnet, the superconducting layer was prepared much thicker than the light's optical penetration depth. The sign and size of the effect, as well as its temperature dependence agree with recent predictions by Bergeret et al.[1].

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 975042
• Report Number(s): SLAC-PUB-13965; TRN: US201007%%976
• Journal Information: Submitted to Physical Review Letters, Journal Name: Submitted to Physical Review Letters
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
KERR EFFECT
MAGNETIZATION
MAGNETOMETERS
PENETRATION DEPTH
PROXIMITY EFFECT
TEMPERATURE DEPENDENCE
MATSCI