| Autor: |
Ruf, L., Elalaily, T., Puglia, C., Ivanov, Yu. P., Joint, F., Berke, M., Iorio, A., Makk, P., De Simoni, G., Gasparinetti, S., Divitini, G., Csonka, S., Giazotto, F., Scheer, E., Di Bernardo, A. |
| Předmět: |
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| Zdroj: |
APL Materials; Sep2023, Vol. 11 Issue 9, p1-7, 7p |
| Abstrakt: |
The control of a superconducting current via the application of a gate voltage has been recently demonstrated in a variety of superconducting devices. Although the mechanism underlying this gate-controlled supercurrent (GCS) effect remains under debate, the GCS effect has raised great interest for the development of the superconducting equivalent of conventional metal-oxide semiconductor electronics. To date, however, the GCS effect has been mostly observed in superconducting devices made by additive patterning. Here, we show that devices made by subtractive patterning show a systematic absence of the GCS effect. Doing a microstructural analysis of these devices and comparing them to devices made by additive patterning, where we observe a GCS, we identify some material and physical parameters that are crucial for the observation of a GCS. We also show that some of the mechanisms proposed to explain the origin of the GCS effect are not universally relevant. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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