Document Type
Article
Original Publication Date
2006
Journal/Book/Conference Title
Applied Physics Letters
Volume
88
Issue
18
DOI of Original Publication
10.1063/1.2200391
Date of Submission
April 2015
Abstract
We show that the dominant absorption peak due to intersubband transition in a gated quantum wire will split into a main peak and two satellite peaks if both Rashba and Dresselhaus spin-orbit interactions are present. One satellite peak will be redshifted, and the other blueshifted. From the relative intensity of either satellite peak, and the magnitude of the red- or blueshift, we can determine both Rashba and Dresselhaus interaction strengths separately, if we also carry out a Hall measurement to determine the carrier concentration and a quantized conductance step measurement to determine the energy separation between subbands. This method may be a convenient alternative to usual magnetotransport measurements used to measurespin-orbit interaction strengths. It is also more powerful because it allows us to measure the strengths of the two types of interactions separately.
Rights
Bandyopadhyay, S., Sarkar, S. Infrared absorption in a quantum wire: A technique to measure different types of spin-orbit interaction strengths. Applied Physics Letters, 88, 183108 (2006). Copyright © 2006 AIP Publishing LLC.
Is Part Of
VCU Electrical and Computer Engineering Publications
Comments
Originally published at http://dx.doi.org/10.1063/1.2200391