ISSN:
1434-6036
Keywords:
74.50
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The present paper is a continuation of [1], where we demonstrated the occurrence of multiple Andreev-reflection (AR) in symmetric Pb/n-InSb/Pb sandwich junctions. Here we are presenting the results of our investigations for the asymmetric configuration Pb/n-InSb/Sn. We discuss the measuredI(V)- anddV/dI(V)-characteristics in comparison with numerical calculations, which we carried out in a theoretical extension of the OTBK-theory [2,3] and a formulation given by W.M. van Huffelen et al. [4]. The main features in the characteristics are thesubharmonic gap structure (SGS) and anexcess current, which show interesting deviations from the symmetric situation. These deviations can be understood in a simple physical picture.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01317588
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