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arXiv · 1104.4407

Circular photogalvanic effect induced by near-infrared radiation in InAs quantum wires patterned quasi two-dimensional electron system

Chongyun Jiang·Yonghai Chen·Hui Ma·Jinling Yu·Yu Liu
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Abstract

In this work we investigated the InAs/InAlAs quantum wires (QWRs) superlattice by optically exciting the structure with near-infrared radiation. By varying the helicity of the radiation at room temperature we observed the circular photogalvanic effect related to the $C_{2v}$ symmetry of the structure, which could be attributed to the formation of a quasi two-dimensional system underlying in the vicinity of the QWRs pattern. The ratio of Rashba and Dresselhaus terms shows an evolution of the spin-orbit interaction in quasi two-dimensional structure with the QWR layer deposition thickness.

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Chongyun Jiang, Yonghai Chen, Hui Ma, Jinling Yu, Yu Liu. 2011-04-22. Circular photogalvanic effect induced by near-infrared radiation in InAs quantum wires patterned quasi two-dimensional electron system. https://doi.org/10.1063/1.3596467

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