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Andreev spectroscop...
Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3
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- Yates, K.A. (author)
- Imperial College of Science, Technology and Medicine
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- Anwar, M.S. (author)
- Universiteit Leiden (UL),Leiden University (UL),Kyoto University
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- Aarts, J.F.M. (author)
- Universiteit Leiden (UL),Leiden University (UL)
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Conde, O. (author)
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- Eschrig, M. (author)
- Royal Holloway University of London
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- Löfwander, Tomas, 1972 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Cohen, L.F. (author)
- Imperial College of Science, Technology and Medicine
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(creator_code:org_t)
- 2013-10-07
- 2013
- English.
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In: Europhysics Letters. - : IOP Publishing. - 0295-5075 .- 1286-4854. ; 103:6
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Abstract
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- 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 to make a definitive statement. The use of the excess current as a further tool to distinguish between models is also examined. The analysis of the spectra demonstrates that the temperature dependence of the normalised zero-bias conductance is independent of the substrate onto which the films are grown. This result has important implications for the engineering of interfaces required for the long-range spin triplet proximity effect. © Copyright EPLA, 2013.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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