Determination of the spin polarization of half-metallic CrO(2) by point contact Andreev reflection. |
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| Authors: | Y Ji G J Strijkers F Y Yang C L Chien J M Byers A Anguelouch G Xiao A Gupta |
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| Affiliation: | Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA. |
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| Abstract: | Andreev reflection at a Pb/CrO(2) point contact has been used to determine the spin polarization of single-crystal CrO(2) films made by chemical vapor deposition. The spin polarization is found to be 0.96 +/- 0.01, which confirms that CrO(2) is a half-metallic ferromagnet, as theoretically predicted. |
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