A.B. McLean, R.H. Williams
Journal of Physics C: Solid State Physics
Electron-spin resonance of (Formula presented) centers in vitreous silica was studied using force-detection techniques at temperatures down to 5 K. Cyclic adiabatic inversion of electron spins was performed by frequency modulation of the applied microwave magnetic field. This produced an oscillatory magnetic force between the electron spins and a nearby permanent magnet, resulting in the vibration of a cantilever on which the sample was mounted. By pulsing the microwave field prior to the force-detection sequence, nutation of the spins could be observed. Spin echoes were observed mechanically using a modified echo-pulse sequence. The decay of magnetization during cyclic adiabatic inversion was also studied and is discussed in terms of utility for future single-spin detection experiments. © 1998 The American Physical Society.
A.B. McLean, R.H. Williams
Journal of Physics C: Solid State Physics
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