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

被引：1
作者：
Alcalde, A. M. [1 ]
Romano, C. L.
Sanz, L. [1 ]
Marques, G. E.
机构：
[1] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil
来源：
12TH INTERNATIONAL CONFERENCE ON PHONON SCATTERING IN CONDENSED MATTER (PHONONS 2007) | 2007年 / 92卷
关键词：
D O I：
10.1088/1742-6596/92/1/012062
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
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.
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页数：4
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