Lock-in detection for pulsed electrically detected magnetic resonance

Details Lock-in detection for pulsed electrically detected magnetic resonance Lock-in detection for pulsed electrically detected magnetic resonance

2011-11-22

arxiv.org/abs/1111.5149v1

Physics

Condensed Matter

Materials Science

4 pages, 2 figures

Scientific paper

We show that in pulsed electrically detected magnetic resonance (pEDMR) signal modulation in combination with a lock-in detection scheme can reduce the low-frequency noise level by one order of magnitude and in addition removes the microwave-induced non-resonant background. This is exemplarily demonstrated for spin-echo measurements in phosphorus-doped Silicon. The modulation of the signal is achieved by cycling the phase of the projection pulse used in pEDMR for the read-out of the spin state.

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