Gap-mediated magnetization of a pseudo-one-dimensional system with a spin-orbit interaction

Details Gap-mediated magnetization of a pseudo-one-dimensional system with a spin-orbit interaction Gap-mediated magnetization of a pseudo-one-dimensional system with a spin-orbit interaction

2006-10-19

arxiv.org/abs/cond-mat/0610531v1

Solid State Comm. 141 (2007) 79-83

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 7 figures; to appear in Solid State Communications

Scientific paper

10.1016/j.ssc.2006.09.052

We argue that a pseudo-one-dimensional electron gas is magnetized when a voltage bias is applied with the Fermi level tuned to be in the energy gap generated by a spin-orbit interaction. The magnetization is an indication of spin-carrying currents due to the spin-orbit interaction. The origin of the magnetization, however, is essentially different from the "spin accumulation" in two-dimensional systems with spin-orbit interactions.

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