Experimental studies on nuclear field generated orthogonal to electron spin in single self-assembled nanostructures

We study the formation mechanism of the nuclear field orthogonal to the photo-injected electron spin observed in the individual self-assembled nanostructures via Hanle effect measurements. The formation of the transverse nuclear field is a crucial subject for the directional control of nuclear spin...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 58; no. SB; p. SBBH10
Main Authors Kaji, Reina, Yamamoto, Sota, Matsusaki, Ryosuke, Adachi, Satoru
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.04.2019
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Summary:We study the formation mechanism of the nuclear field orthogonal to the photo-injected electron spin observed in the individual self-assembled nanostructures via Hanle effect measurements. The formation of the transverse nuclear field is a crucial subject for the directional control of nuclear spin polarization with an optical method, and the mechanism elucidation may open up a new spin physics. We proceed the experimental studies by changing the nanostructure material and the excitation conditions. It is clearly revealed that the formation mechanism of transverse nuclear field does not depend on the sign of electron g factor. In addition, the excitation power dependence and the effect of the polarization modulation of the excitation beam are investigated.
Bibliography:JJAP-s100098
ISSN:0021-4922
1347-4065
DOI:10.7567/1347-4065/aafe66