Electron (hole) paramagnetic resonance of spherical CdSe nanocrystals

Details Electron (hole) paramagnetic resonance of spherical CdSe nanocrystals Electron (hole) paramagnetic resonance of spherical CdSe nanocrystals

2001-11-11

arxiv.org/abs/cond-mat/0111200v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1063/1.1491407

A new mechanism of electron paramagnetic resonance in spherical zinc-blende semiconductor nanocrystals, based on the extended orbital motion of electrons in the entire nanocrystal, is presented. Quantum confinement plays a crucial role in making the resonance signal observable. The mechanism remains operative in nanocrystals with uniaxially distorted shape. A theoretical model based on the proposed mechanism is in good quantitative agreement with unusual ODMR spectra observed in nearly spherical CdSe nanocrystals.

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