Optical detection of anisotropic g-factor and nuclear spin polarization in a single CdTe quantum well

Li Ping Yan, Masahiro Kurosawa, Wei Ting Hsu, Wen-Hao Chang, Satoru Adachi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Longitudinal and in-plane electron g-factors, and a nuclear spin polarization (NSP) have been evaluated precisely in a CdTe/Cd0.85Mg0.15Te single quantum well by using the time-resolved Kerr rotation and double lock-in detection techniques. Resident electron spin polarization (RESP) was formed via the negative trion formation and recombination, and RESP gave rise to NSP in an oblique magnetic field configuration. We observed the effective nuclear field of a few mT which was weak compared with that in III-V semiconductor nanostructures as expected, but the nuclear field can be converted to the maximal NSP of 12% in Faraday geometry.

Original languageEnglish
Article number033003
JournalJapanese Journal of Applied Physics
Volume54
Issue number3
DOIs
StatePublished - 1 Mar 2015

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