Spectroscopy of electron-phonon interaction in β phase of mo-Re alloy

The mechanism of electron-phonon interaction in the Mo0.73Re0.27 alloy in the Ag-I-Mo0.73Re0.27 tunnel contact, where the dielectric I is formed on natural MoReOx oxide, was investigated for the first time. This approach helped to avoid the proximity effect, which is inherent in a wide range of cont...

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Veröffentlicht in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2023-02, Vol.49 (2), p.209-215
Hauptverfasser: D’yachenko, A., Kalenyuk, A., Tarenkov, V., Shapovalov, A., Boliasova, O., Menesenko, D.
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Sprache:eng
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Zusammenfassung:The mechanism of electron-phonon interaction in the Mo0.73Re0.27 alloy in the Ag-I-Mo0.73Re0.27 tunnel contact, where the dielectric I is formed on natural MoReOx oxide, was investigated for the first time. This approach helped to avoid the proximity effect, which is inherent in a wide range of contacts with the oxidized Al layer. Due to the lack of a negative proximity effect, which leads to a zero anomaly in the tunneling conductivity, the scale of which exceeds the fine structure of the electron-phonon interaction, it was possible to obtain the characteristics of the phonon spectrum of the studied molybdenum-rhenium alloy. The obtained results are in good agreement with the data from thermal conductivity measurements, point-contact and neutron spectroscopy.
ISSN:1063-777X
1090-6517
DOI:10.1063/10.0016872