Long-Lived Spin Coherence States

Details Long-Lived Spin Coherence States Long-Lived Spin Coherence States

2003-11-10

arxiv.org/abs/cond-mat/0311223v1

Phys. Rev. B 71, 155317 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.71.155317

We study evolution of electron spin coherence having non-homogeneous direction of spin polarization vector in semiconductor heterostructures. It is found that the electron spin relaxation time due to the D'yakonov-Perel' relaxation mechanism essentially depends on the initial spin polarization distribution. This effect has its origin in the coherent spin precession of electrons diffusing in the same direction. We predict a long spin relaxation time of a novel structure: a spin coherence standing wave and discuss its experimental realization.

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