Lee, Minchul and Hachiya, Marco O. and Bernardes, E. and Egues, J. Carlos and Loss, Daniel.
(2009)
* Spin Hall effect due to intersubband-induced spin-orbit interaction in symmetric quantum wells.*
Physical Review B, Vol. 80, H. 15 , 155314.

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Official URL: http://edoc.unibas.ch/dok/A5254578

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## Abstract

We investigate the intrinsic spin Hall effect in two-dimensional electron gases in quantum wells with two subbands, where a new intersubband-induced spin-orbit coupling is operative. The bulk spin Hall conductivity sigma(z)(xy) is calculated in the ballistic limit within the standard Kubo formalism in the presence of a magnetic field B and is found to remain finite in the B=0 limit, as long as only the lowest subband is occupied. Our calculated sigma(z)(xy) exhibits a nonmonotonic behavior and can change its sign as the Fermi energy (the carrier areal density n(2D)) is varied between the subband edges. We determine the magnitude of sigma(z)(xy) for realistic InSb quantum wells by performing a self-consistent calculation of the intersubband-induced spin-orbit coupling.

Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss) |
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UniBasel Contributors: | Loss, Daniel |

Item Type: | Article, refereed |

Article Subtype: | Research Article |

Publisher: | American Institute of Physics |

ISSN: | 0163-1829 |

Note: | Publication type according to Uni Basel Research Database: Journal article |

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Last Modified: | 22 Mar 2012 14:25 |

Deposited On: | 22 Mar 2012 13:43 |

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