The authors demonstrate readout of electrically detected magnetic resonance at radio frequencies by means of a tank circuit. Applied to a silicon field-effect transistor at millikelvin temperatures, this method shows a 25-fold increased signal-to-noise ratio of the conduction band electron spin resonance and a higher operational bandwidth of compared to the kilohertz bandwidth of conventional readout techniques. This increase in temporal resolution provides a method for future direct observations of spin dynamics in the electrical device characteristics.
Electrically detected magnetic resonance using radio-frequency reflectometry
Present address: Department of Physics, University of Utah, 115 S 1400 E, Suite 201, Salt Lake City, Utah 84112-0830, USA.
H. Huebl, R. P. Starrett, D. R. McCamey, A. J. Ferguson, L. H. Willems van Beveren; Electrically detected magnetic resonance using radio-frequency reflectometry. Rev. Sci. Instrum. 1 November 2009; 80 (11): 114705. https://doi.org/10.1063/1.3258206
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