Interplay of magnetic field and geometry in magneto-transport of mesoscopic loops with Rashba and Dresselhaus spin-orbit interactions

被引：17
|
作者：
Sil, Shreekantha [1 ]
Maiti, Santanu K. [2 ]
Chakrabarti, Arunava [3 ]
机构：
[1] Visva Bharati, Dept Phys, Santini Ketan 731235, W Bengal, India
[2] Tel Aviv Univ, Sch Chem, IL-69978 Tel Aviv, Israel
[3] Univ Kalyani, Dept Phys, Kalyani 741235, W Bengal, India
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 112卷 / 02期
关键词：
QUANTUM-WELLS;
D O I：
10.1063/1.4739485
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Electronic transport in closed loop structures is addressed within a tight-binding formalism and in the presence of both the Rashba and Dresselhaus spin-orbit (SO) interactions. It has been shown that any one of the SO fields can be estimated precisely if the other one is known, by observing either the transmission resonance or anti-resonance of unpolarized electrons. The result is obtained through an exact analytic calculation for a simple square loop and through a numerically exact formulation for a circular ring. The sensitivity of the transport properties on the geometry of the interferometer is discussed in details. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4739485]
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页数：4
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