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arXiv · 1111.5149

Lock-in detection for pulsed electrically detected magnetic resonance

Felix Hoehne·Lukas Dreher·Jan Behrends·Matthias Fehr·Hans Huebl·Klaus Lips·Alexander Schnegg·Max Suckert·Martin Stutzmann·Martin S. Brandt
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Abstract

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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Felix Hoehne, Lukas Dreher, Jan Behrends, Matthias Fehr, Hans Huebl, Klaus Lips, Alexander Schnegg, Max Suckert, Martin Stutzmann, Martin S. Brandt. 2011-11-22. Lock-in detection for pulsed electrically detected magnetic resonance. https://doi.org/10.1063/1.4704837

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