Optical Control of Topological Quantum Transport in Semiconductors

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Intense coherent laser radiation red-detuned from absorption edge can reactively activate sizable Hall type charge and spin transport in n-doped paramagnetic semiconductors as a consequence of k-space Berry curvature transferred from valence band to photon-dressed conduction band. In the presence of disorder, the optically induced Hall conductance can change sign with laser intensity.
to appear in Phys. Rev. Lett

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Mesoscale and Nanoscale Physics, Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/134874

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0702346
 http://arxiv.org/abs/cond-mat/0702346
 Phys. Rev, Lett. 99, 047401 (2007)
 doi:10.1103/PhysRevLett.99.047401

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