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AbstractAbstract
[en] We study nonlocal transport in a two-leg Kitaev ladder connected to two normal metals. The coupling between the two legs of the ladder when the legs are maintained at a (large) superconducting phase difference, results in the creation of subgap Andreev states. These states in turn are responsible for the enhancement of crossed Andreev reflection (CAR). We find that tuning the different parameters of the system suitably leads to enhancement of CAR signalled by transconductance acquiring the most negative value possible. Furthermore, subgap states cause oscillations of the transconductance as a function of various system parameters such as chemical potential and ladder length, which are seen to be a consequence of Fabry–Pérot resonance. (paper)
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Available from http://dx.doi.org/10.1088/1361-648X/ab2403; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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