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“Gate-Controlled Suspended Titanium Nanobridge Supercurrent Transistor” published on ACS Nano

"Gate-Controlled Suspended Titanium Nanobridge Supercurrent Transistor" published on ACS Nano “Gate-Controlled Suspended Titanium Nanobridge Supercurrent Transistor” published on ACS Nano

Under standard conditions, the electrostatic field-effect is negligible in conventional metals and was expected to be completely ineffective also in superconducting metals. This common belief was recently put under question by a family of experiments that displayed full gate-voltage-induced suppression of critical current in superconducting all-metallic gated nanotransistors.

A new research carried out at the SQEL add an another piece to this intriguing puzzle showing the control of the supercurrent in fully suspended superconducting nanobridges.

The research, published on ACS Nano by M. Rocci and co-authors, allows to take a different perspective compared to previous studies and promise a better understanding of the field effect in superconducting metals, ruling out some of the hypothesis as possible mechanisms driving for the observed phenomenology.

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SQEL at “Highlights in Nanoscience”

Our group leader, Dr. F. Giazotto, while presenting the SQEL works at the NEST Conference 2019 “Highlights in Nanoscience”.

The SQEL group attended the 2019 NEST annual meeting “Highlights in Nanoscience” with a talk by our group leader Dr. F. Giazotto and two poster presentations.

The main goal of the conference, which has been co-organized by Dr. E. Strambini of SQEL, was to display, share and discuss the most recent activities of the NEST laboratory where we are located.

The two poster contributions of our group were “Field-effect metallic superconducting electronics” presented by C. Puglia and F. Vischi and “Revealing the Spin-Orbit Interaction in InAs nanowires” by A. Iorio.

Poster – Field-effect metallic superconducting electronicsDownload
Poster – Revealing the Spin-Orbit interaction in InAs nanowiresDownload
  • C. Puglia and F. Vischi and the poster “Field-effect metallic superconducting electronics”
  • A. Iorio and the poster “Revealing the Spin-Orbit Interaction in InAs nanowires”