Phys. Rev. B 64, 224425 (2001) [4 pages]Comparison of two models for spin polarization measurements by Andreev reflectionReceived 13 August 2001; published 21 November 2001 Two different theoretical approaches in the determination of spin polarization by point-contact Andreev reflection are discussed and compared from an experimental perspective. Both models can be used to extract spin polarization from experimental results for a variety of ferromagnetic materials including half-metallic CrO2. The difference in values of polarization as determined by two models is less than 0.02. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.64.224425
DOI:
10.1103/PhysRevB.64.224425
PACS:
74.80.Fp, 75.30.-m, 75.70.-i
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