Raman study of lattice vibrations in type II superlattice InAs/InAs1-xSbx
Henan Liu, Yong Zhang, Elizabeth H. Steenbergen, Shi Liu, Zhiyuan Lin,, Yong-Hang Zhang, Jeomoh Kim, Mi-Hee Ji, Theeradetch Detchprohm, Russell D., Dupuis, Jin K. Kim, Samuel D. Hawkins, and John F. Klem
TL;DR
This study uses polarized Raman spectroscopy to analyze lattice vibrations in InAs/InAs1-xSbx superlattices and alloys, providing insights into their vibrational properties relevant for optoelectronic applications.
Contribution
It presents the first detailed polarized Raman analysis of InAs/InAs1-xSbx superlattices and alloys grown on GaSb substrates, highlighting vibrational characteristics.
Findings
Identification of vibrational modes specific to superlattice structures
Comparison of vibrational properties between superlattices and alloys
Insights into strain and composition effects on lattice vibrations
Abstract
In this work, we report a polarized Raman study on the vibrational properties of the InAs/InAs1-xSbx SLs as well as selected InAs1-xSbx alloys, all grown on GaSb substrates by either MBE or MOCVD, from both growth surface and cleaved edge.
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