Detection of spin polarization with a side coupled quantum dot

Details Detection of spin polarization with a side coupled quantum dot Detection of spin polarization with a side coupled quantum dot

2009-02-25

arxiv.org/abs/0902.4329v2

Phys. Rev. B 79, 195313 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 6 figures

Scientific paper

10.1103/PhysRevB.79.195313

We propose realistic methods to detect local spin polarization, which utilize
a quantum dot side coupled to the target system. By choosing appropriate states
in the dot, we can put spin selectivity to the dot and detect spins in the
target with small disturbance. We also present an experiment which realizes one
of the proposed spin detection schemes in magnetic fields.

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