Spin Dephasing and Hot Spins

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dc.creatorDatta, Supriyo
dc.date2008-02-14
dc.date.accessioned2026-07-07T09:20:48Z
dc.date.available2026-07-07T09:20:48Z
dc.descriptionAt this summer school, I have tried to describe a general approach to quantum transport problems based on the Non-equilibrium Green Function (NEGF) method . I will not repeat this treatment here. Instead I will use this article to draw attention to a core issue in quantum transport and how it is modeled within the NEGF method. Specifically, I will discuss what constitutes a dephasing process and how the standard descriptions may need to be extended to include what I will call hot spin effects. These involve a number of subtle issues that tend to get hidden in a purely formal description. So I have chosen instead to illustrate the concepts using a concrete device, which is specially engineered to enhance its sensitivity to spin dephasing and hot spin effects.
dc.descriptionThis article appeared earlier in the Proceedings of the International School of Physics Enrico Fermi Course CLX. Present version incorporates minor corrections/modifications
dc.identifierhttps://arxiv.org/abs/0802.2067
dc.identifierhttp://arxiv.org/abs/0802.2067
dc.identifierProceedings of the International School of Physics Enrico Fermi Course CLX, 20-30 July 2004, eds. A.D'Amico, A.Paoletti and G.Balestrino, Societa Italiana di Fisica (2005)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/154839
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStatistical Mechanics
dc.titleSpin Dephasing and Hot Spins
dc.typetext

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