4.2 K sensitivity-tunable radio frequency reflectometry of a physically defined p-channel silicon quantum dot

Abstract We demonstrate the measurement of p-channel silicon-on-insulator quantum dots at liquid helium temperatures by using a radio frequency (rf) reflectometry circuit comprising of two independently tunable GaAs varactors. This arrangement allows observing Coulomb diamonds at 4.2 K under nearly...

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Bibliographic Details
Main Authors: Sinan Bugu, Shimpei Nishiyama, Kimihiko Kato, Yongxun Liu, Shigenori Murakami, Takahiro Mori, Thierry Ferrus, Tetsuo Kodera
Format: Article
Language:English
Published: Nature Portfolio 2021-10-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-99560-x