Geometrical spin dephasing in quantum dots

Details Geometrical spin dephasing in quantum dots Geometrical spin dephasing in quantum dots

2006-03-31

arxiv.org/abs/cond-mat/0603847v2

Phys. Rev. Lett. 97, 076803 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Replaced with final published version

Scientific paper

10.1103/PhysRevLett.97.076803

We study spin-orbit mediated relaxation and dephasing of electron spins in
quantum dots. We show that higher order contributions provide a relaxation
mechanism that dominates for low magnetic fields and is of geometrical origin.
In the low-field limit relaxation is dominated by coupling to electron-hole
excitations and possibly $1/f$ noise rather than phonons.

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