Optical properties of a semiconductor quantum dot with a single magnetic impurity: photoinduced spin orientation

Details Optical properties of a semiconductor quantum dot with a single magnetic impurity: photoinduced spin orientation Optical properties of a semiconductor quantum dot with a single magnetic impurity: photoinduced spin orientation

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrvb..71c5338g&link_type=abstract

Physical Review B, vol. 71, Issue 3, id. 035338

Physics

49

Quantum Dots, Quantum Description Of Interaction Of Light And Matter, Related Experiments, Magnetic Properties Of Nanostructures

Scientific paper

We describe the optical resonant manipulation of a single magnetic impurity in a self-assembled quantum dot. We show that using the resonant pumping one can address and manipulate selectively individual spin states of a magnetic impurity. The mechanisms of resonant optical polarization of a single impurity in a quantum dot involve anisotropic exchange interactions and are different than those in diluted semiconductors. A Mn impurity can be prepared in a given spin state and can act as qubit. The limiting factors for the spin manipulation are the electron-hole exchange interaction and finite temperature.

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