Point contact Andreev reflection spectroscopy of NdFeAsO0.85

Andreev-reflection and Point-contact Spectroscopy of Superconducting Rare Earth Transition Metal Borocarbides

Interface spin-flip scattering model for point contact Andreev reflection

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Point-Contact Andreev-Reflection Spectroscopy in Fe-Based Superconductors: Multigap Superconductivity and Strong Electron–Boson Interaction

We performed point-contact Andreev-reflection measurements in Ba(Fe1−xCox)2As2 single crystals (x = 0.1, Tc = 24.5 K) and SmFeAsO1−xFx polycrystals (x = 0.2, Tc = 52 K). The spectra indicate the presence of two superconducting gaps with no line nodes on the Fermi surface, but also feature additional structures related to the electron–boson interaction (EBI). From the spectra, it is possible to ...

Determination of the spin polarization of half-metallic CrO(2) by point contact Andreev reflection.

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.

Analysis of point-contact Andreev reflection spectra in spin polarization measurements

G. T. Woods,1,4 R. J. Soulen, Jr.,1 I. Mazin,1 B. Nadgorny,2 M. S. Osofsky,1 J. Sanders,3 H. Srikanth,3 W. F. Egelhoff,4 and R. Datla4 1Naval Research Laboratory, Washington, DC 20375, USA 2Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201, USA 3Department of Physics, University of South Florida, Tampa, Florida 33620, USA 4National Institute of Standards and T...