Local spin susceptibilities of low-dimensional electron systems
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CitationStano, Peter, Jelena Klinovaja, Amir Yacoby, and Daniel Loss. 2013. “Local Spin Susceptibilities of Low-Dimensional Electron Systems.” Physical Review B 88 (4). https://doi.org/10.1103/physrevb.88.045441.
AbstractWe investigate, assess, and suggest possibilities for a measurement of the local spin susceptibility of a conducting low-dimensional electron system. The basic setup of the experiment we envisage is a source-probe one. Locally induced spin density (e. g., by a magnetized atomic force microscope tip) extends in the medium according to its spin susceptibility. The induced magnetization can be detected as a dipolar magnetic field, for instance, by an ultrasensitive nitrogen-vacancy center based detector, from which the spatial structure of the spin susceptibility can be deduced. We find that one-dimensional systems, such as semiconducting nanowires or carbon nanotubes, are expected to yield a measurable signal. The signal in a two-dimensional electron gas is weaker, though materials with a high enough g-factor (such as InGaAs) seem promising for successful measurements.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41412141
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