Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3

@article{Yates2013AndreevSO,
  title={Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3},
  author={Karen A. Yates and M S Anwar and Jan Aarts and O. Conde and M Eschrig and Tomas Lofwander and LF Cohen},
  journal={EPL},
  year={2013},
  volume={103},
  pages={67005}
}
Here we analyse the spectroscopic information gathered at a number of single CrO2/Pb interfaces. We examine thin films requiring additional interfacial layers to generate long-range spin triplet proximity effect superconductivity (CrO2/TiO2) or not (CrO 2/Al2O3). We analyse the data using two theoretical models and explore the use of a parameter-free method to determine the agreement between the models and experimental observations, showing the necessary temperature range that would be required… Expand
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This article provides a general framework for non-local Andreev phenomena in systems involving superconductors and ferromagnets with strong spin-polarization in terms of coherence functions, and shows how the latter link wave function and Green-function based theories. Expand
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