Spin-Hall effect in a disordered two-dimensional electron system

被引：163
|
作者：
Raimondi, R
Schwab, P
机构：
[1] Univ Roma Tre, Dipartimento Fis E Amaldi, I-00146 Rome, Italy
[2] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[3] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany
来源：
PHYSICAL REVIEW B | 2005年 / 71卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.71.033311
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We calculate the spin-Hall conductivity for a two-dimensional electron gas within the self-consistent Born approximation, varying the strength and type of disorder. In the weak disorder limit we find both analytically and numerically a vanishing spin-Hall conductivity even when we allow a momentum dependent scattering. Separating the reactive from the dissipative current response, we find the universal value sigma(sH)(R)=e/8pi for the reactive response, which cancels however with the dissipative part sigma(sH)(D)=-e/8pi.
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页数：4
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