Electrically detected magnetic resonance using radio-frequency reflectometry.
The authors demonstrate readout of electrically detected magnetic resonance at radio frequencies by means of a LCR 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 >300 kHz 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.
Huebl
H
H
Australian Research Council Centre of Excellence for Quantum Computer Technology, School of Physics, The University of New South Wales, Sydney 2052, Australia. huebl@wmi.badw.de
Starrett
R P
RP
McCamey
D R
DR
Ferguson
A J
AJ
Willems van Beveren
L H
LH