One-dimensional spin-orbit interferometer

被引:3
作者
Li, Tommy [1 ]
Sushkov, Oleg P. [1 ]
机构
[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
关键词
QUANTUM BOUND-STATES; RASHBA; TRANSPORT; TRANSMISSION;
D O I
10.1103/PhysRevB.87.165434
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We demonstrate that the combination of an external magnetic field and the intrinsic spin-orbit interaction results in nonadiabatic precession of the electron spin after transmission through a quantum point contact (QPC). We suggest that this precession may be observed in a device consisting of two QPCs situated in series. The pattern of resonant peaks in the transmission is strongly influenced by the non-Abelian phase resulting from this precession. Moreover, an unusual type of resonance which is associated with suppressed, rather than enhanced, transmission (i.e., antiresonance) emerges in the strongly nonadiabatic regime. The shift in the resonant transmission peaks is dependent on the spin-orbit interaction and therefore offers a way to directly measure these interactions in a ballistic one-dimensional system. DOI: 10.1103/PhysRevB.87.165434
引用
收藏
页数:8
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