Hole Spin Resonance and Spin-Orbit Coupling in a Silicon Metal-Oxide-Semiconductor Field-Effect Transistor

Physical Review Letters
K OnoFranco Nori

Abstract

We study hole spin resonance in a p-channel silicon metal-oxide-semiconductor field-effect transistor. In the subthreshold region, the measured source-drain current reveals a double dot in the channel. The observed spin resonance spectra agree with a model of strongly coupled two-spin states in the presence of a spin-orbit-induced anticrossing. Detailed spectroscopy at the anticrossing shows a suppressed spin resonance signal due to spin-orbit-induced quantum state mixing. This suppression is also observed for multiphoton spin resonances. Our experimental observations agree with theoretical calculations.

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Citations

Jun 8, 2019·Physical Review Letters·K OnoFranco Nori
Oct 31, 2020·Physical Review Letters·K OnoFranco Nori
Jul 12, 2018·Nano Letters·R MizokuchiS De Franceschi

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