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Issues »  Volume 41, Issue 5

Superconducting Hybrid Heterostructures MoRe–Si(W)–MoRe and Charge Transport Through Localized States in the Barrier

V. Ye. Shaternik1, A. P. Shapovalov2, O. Yu. Suvorov1

1G. V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
2V. M. Bakul Institute for Superhard Materials, NAS of Ukraine, 2 Avtozavods’ka Str., UA-04074 Kyiv, Ukraine

Received: 05.11.2018. Download: PDF

The paper presents the results of a study of charge transport in superconducting MoRe–Si(W)–MoRe heterostructures with a hybrid barrier formed by a semiconductor layer with metal clusters. In a case of low content of tungsten in the barrier, the current-voltage characteristics of the heterostructure are determined by the charge-transport contributions from both tunnelling processes and Andreev reflections of carriers. In a case of increased tungsten content in the barrier, superconducting currents arise in the heterostructures simultaneously due to Andreev reflections of carriers at the interfaces and by resonance-percolation charge transport through the barriers.

Key words: hybrid superconducting heterostructures, Josephson junction, one-dimensional transport, resonant tunnelling, resonance-percolation transport.

URL: http://mfint.imp.kiev.ua/en/abstract/v41/i05/0565.html

DOI: https://doi.org/10.15407/mfint.41.05.0565

PACS: 73.23.Hk, 73.30.+y, 74.45.+c, 74.50.+r, 74.55.+v, 74.81.Fa

Citation: V. Ye. Shaternik, A. P. Shapovalov, and O. Yu. Suvorov, Superconducting Hybrid Heterostructures MoRe–Si(W)–MoRe and Charge Transport Through Localized States in the Barrier, Metallofiz. Noveishie Tekhnol., 41, No. 5: 565—582 (2019) (in Ukrainian)

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