Measurement of the transport spin-polarization of oxides using Point Contact Andreev Reflection (PCAR)

Authors
Osofsky, MS Nadgorny, B Soulen, RJ Trotter, G Broussard, P Desisto, W Laprade, G Mukovskii, YM Arsenov, A
Citation
Ms. Osofsky et al., Measurement of the transport spin-polarization of oxides using Point Contact Andreev Reflection (PCAR), PHYSICA C, 341, 2000, pp. 1527-1530
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
341
Year of publication
2000
Part
3
Pages
1527 - 1530
Database
ISI
SICI code
0921-4534(200011)341:<1527:MOTTSO>2.0.ZU;2-S
Abstract
A new method for determining the transport spin-polarization, point contact tunneling from a low temperature superconductor into a ferromagnet, is use d to determine the spin polarization of various ferromagnetic thin films an d crystals. The Andreev reflection process and its utility in measurements of spin-polarization are described. Preliminary results for the spin polari zation of several oxide materials are presented.