2011/11/22 by Felix Hoehne, L. Dreher, Lukas Dreher +11 · 1 citation
Physics and Astronomy · #Acoustics #Atomic physics #Computer science #Detector #Echo (communications protocol) #Lock (firearm) #Magnetic resonance imaging #Materials science #Mechanical and Optical Resonators #Microwave #Modulation (music) #Noise (video) #Nuclear magnetic resonance #Optics #Optoelectronics #Physics #Pulse (music) #Pulsed EPR #Quantum and electron transport phenomena #Resonance (particle physics) #SIGNAL (programming language) #Semiconductor materials and interfaces #Silicon #Spin echo #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1063/1.4704837
4 pages, 2 figures
arxiv created 2011/11/22 · openalex publication_date 2012/04/01 · arxiv updated 2015/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 readout of the spin state.