Characterization of the out-of-plane Dresselhaus effective magnetic field in InGaAs/InAlAs (110) multiple quantum wells at room temperature. (1st April 2023)

• Record Type: Journal Article
• Authors: Sato, Shota; Sugaya, Kyohei; Nakanishi, Koichi; Yokota, Nobuhide; Kohda, Makoto; Morita, Ken
• Is Part Of: Japanese journal of applied physics. Volume 62:Number SB(2023)
• Publication Date: 2023-04-01
• Subjects: InGaAs (110) quantum wells -- spin–orbit interaction -- dresselhaus spin–orbit magnetic field; Physics -- Periodicals; 621.05
• DOI: 10.35848/1347-4065/acbff6
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: Recently, we directly observed the out-of-plane Dresselhaus spin–orbit (SO) interaction field and extracted the SO coefficient β from InGaAs (110) quantum wells (QWs). However, the extracted β was much larger than that of the (001) QWs, which yielded an in-plane Dresselhaus SO field. In this study, we perform Monte-Carlo simulations and reproduce the results of time-resolved and spatiotemporally resolved Kerr rotation measurements in InGaAs (110) QWs. The results conclusively show that InGaAs (110) QWs have a strong out-of-plane Dresselhaus SO field as compared with (001) QWs.