2011/10/24 by Christoph Ohm, C. Ohm, C. Stampfer +5 · 2 citations
Materials Science · Physics and Astronomy · #Bending #Carbon Nanotubes in Composites #Carbon nanotube #Coupling (piping) #Inductive coupling #Leakage (economics) #Magnetic field #Mechanical and Optical Resonators #Microwave #Quantum and electron transport phenomena #Vibration #Work (physics) #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.3698395
published as Appl. Phys. Lett. 100, 143103 (2012) · 3 pages(+), 3 figures
arxiv created 2011/10/24 · openalex publication_date 2012/04/02 · arxiv updated 2012/07/26 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We propose a scheme for spin-based detection of the bending motion in suspended carbon-nanotubes, using the curvature-induced spin-orbit interaction. We show that the resulting effective spin-phonon coupling can be used to down-convert the high-frequency vibration-modulated spin-orbit field to spin-flip processes at a much lower frequency. This vibration-induced spin-resonance can be controlled with an axial magnetic field. We propose a Pauli spin blockade readout scheme and predict that the leakage current shows pronounced peaks as a function of the external magnetic field. Whereas the resonant peaks allow for frequency readout, the slightly off-resonant current is sensitive to the vibration amplitude.