Silicon–Aluminum Phase-Transformation-Induced Superconducting Rings

Autor: Brett C. Johnson, Michael Stuiber, Daniel L. Creedon, Manjith Bose, Amanuel Berhane, Laurens Henry Willems van Beveren, Sergey Rubanov, Jared H. Cole, Vincent Mourik, Alexander R. Hamilton, Timothy L. Duty, Jeffrey Colin McCallum
Rok vydání: 2022
Předmět:
Zdroj: Nano Letters. 23:17-24
ISSN: 1530-6992
1530-6984
DOI: 10.1021/acs.nanolett.2c02814
Popis: The development of devices that exhibit both superconducting and semiconducting properties is an important endeavor for emerging quantum technologies. We investigate superconducting nanowires fabricated on a silicon-on-insulator (SOI) platform. Aluminum from deposited contact electrodes is found to interdiffuse with Si along the entire length of the nanowire, over micrometer length scales and at temperatures well below the Al-Si eutectic. The phase-transformed material is conformal with the predefined device patterns. The superconducting properties of a transformed mesoscopic ring formed on a SOI platform are investigated. Low-temperature magnetoresistance oscillations, quantized in units of the fluxoid
Databáze: OpenAIRE