Terahertz absorption in spintronic superlattices

Authors

C. Zhang, University of WollongongFollow
Feng Gao, University of WollongongFollow
C. H. Yang, Institute of Solid State Physics, China

RIS ID

25205

Publication Details

This paper was originally published as: Zhang, C, Gao, F & Yang, CH, Terahertz absorption in spintronic superlattices, Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics 2006 (IRMMW-THz 2006), Shanghai, China, 18-22 September 2006, 52-52. Copyright IEEE 2006.

Abstract

In this work we present a theoretical investigation of optical absorption in a spintronic superlattice. It is shown that the Rashba spin-orbit interaction can be used to control the characteristics of the absorption. Our results suggest possible experiments to detect such tunable absorption spectra. The underlying mechanism is the level splitting and linear energy dispersion, both are the consequences of spin-orbit interaction. The proposed absorption properties can be useful in developing spintronic devices in the terahertz regime.