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arXiv · 1007.3965

Spin interactions in a quantum dot containing a magnetic impurity

Aram Manaselyan·Tapash Chakraborty
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Abstract

The electron and hole states in a CdTe quantum dot containing a single magnetic impurity in an external magnetic field are investigated, using the multiband approximation which includes the heavy hole-light hole coupling effects. The electron-hole spin interactions and s,p-d interactions between the electron, the hole and the magnetic impurity are also included. The exciton energy levels and optical transitions are evaluated using the exact diagonalization scheme. A novel mechanism is proposed here to manipulate impurity-spin in the quantum dot which allows us to drive selectively the spin of the magnetic atom into each of its six possible orientations.

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Aram Manaselyan, Tapash Chakraborty. 2010-07-22. Spin interactions in a quantum dot containing a magnetic impurity. https://doi.org/10.1088/0957-4484%2F21%2F35%2F355401

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