Journal article
Silicon-Aluminum Phase-Transformation-Induced Superconducting Rings
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
NANO LETTERS | AMER CHEMICAL SOC | Published : 2023
Abstract
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..
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Grants
Awarded by Australian Research Council (ARC)
Awarded by ARC Centre of Excellence for Quantum Computation and Communication Technology
Awarded by ARC grant
Awarded by ARC Centre of Excellence FLEET
Awarded by Australian Research Council
Funding Acknowledgements
This work was funded by an Australian Research Council (ARC) grant (DP200103233) . We acknowledge the ARC Centre of Excellence for Quantum Computation and Communication Technology (CE170100012) for financial support. The AFAiiR node of the NCRIS Heavy Ion Capability is also acknowledged for access to ionimplantation/ion-beam analysis facilities. M.S. acknowledges the Melbourne international fee remission scholarship (MISRF) and the Melbourne international research scholarship (MIRS) . D.L.C. is supported by ARC grant DP190102852. J.H.C. is supported by the ARC Centre of Excellence FLEET (CE170100039) and the Australian National Computational Infrastructure facility. Finally, we thank Stephen Gregory for technical support.