Symmetry of anisotropic exchange interactions in semiconductor nanostructures

Details Symmetry of anisotropic exchange interactions in semiconductor nanostructures Symmetry of anisotropic exchange interactions in semiconductor nanostructures

2002-12-14

arxiv.org/abs/cond-mat/0212347v1

Physics

Condensed Matter

Scientific paper

The symmetry of exchange interaction of charge carriers in semiconductor nanostructures (quantum wells and quantum dots) is analysed. It is shown that the exchange Hamiltonian of two particles belonging to the same energy band can be universally expressed via pseudospin operators of the particles. The relative strength of the anisotropic exchange interaction is shown to be independent of the binding energy and the isotropic exchange constant.

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