Phonon modulation of the spin-orbit interaction as a spin relaxation mechanism in quantum dots

Abstract

We calculate the spin relaxation rates in a parabolic InSb quantum dots due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov spin-phonon Hamiltonian. By studying suitable choices of magnetic field and lateral dot size, we determine regions where the spin relaxation rates can be practically suppressed. We analyze the behavior of the spin relaxation rates as a function of an external magnetic field and mean quantum dot radius. Effects of the spin admixture due to Dresselhaus contribution to spin-orbit interaction are also discussed.

References in corpus (6)

• Spin-flip transitions between Zeeman sublevels in semiconductor quantum dots
• Spin dynamics in semiconductor nanocrystals
• Electron Spin Decoherence in Bulk and Quantum Well Zincblende Semiconductors
• Spin-orbit coupling and intrinsic spin mixing in quantum dots
• Anisotropy of spin splitting and spin relaxation in lateral quantum dots
• Electron-phonon induced spin relaxation in InAs quantum dots

Cited by in corpus (8)

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• Acoustic spin Hall effect in strong spin-orbit metals
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• Dominant role of the shear strain induced admixture in spin-flip processes in self-assembled quantum dots
• Spin-orbit coupling and electric-dipole spin resonance in a nanowire double quantum dot
• Controllable electron spin dephasing due to phonon state distinguishability in a coupled quantum dot system
• Elasto-Dynamical Induced Spin and Charge Pumping in Bulk Heavy Metals
• Spin-relaxation anisotropy in a nanowire quantum dot with strong spin-orbit coupling