Negative nonlocal and local voltages (resistances) in a quasi-one-dimensional superconducting aluminum structure

Negative nonlocal and local voltages (resistances) in a quasi-one-dimensional superconducting aluminum structure

•We measured negative nonlocal and local dc voltages in a superconducting structure.•The structure consists of narrow and wide wires with critical temperatures Tn and Tw.•We found negative nonlocal and local voltages (resistances) at temperatures Tn

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2021-02, Vol.581, p.1353811, Article 1353811
Hauptverfasser: Kuznetsov, V.I., Trofimov, O.V.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Critical temperature
Direct current
Electric potential
Electron transfer
Electron transport
Elementary excitations
Magnetic fields
negative nonlocal dc voltage
normal-superconducting interface
quasiparticle charge imbalance
superconducting fluctuations
superconducting quasi-one-dimensional wire
Superconductivity
Voltage
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Beschreibung
Zusammenfassung:•We measured negative nonlocal and local dc voltages in a superconducting structure.•The structure consists of narrow and wide wires with critical temperatures Tn and Tw.•We found negative nonlocal and local voltages (resistances) at temperatures Tn
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2020.1353811