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Double nuclear spin switching in single quantum dots

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Title: Double nuclear spin switching in single quantum dots
Authors: Yamamoto, S. Browse this author →KAKEN DB
Kaji, R. Browse this author
Sasakura, H. Browse this author →KAKEN DB
Adachi, S. Browse this author →KAKEN DB
Issue Date: 15-Jan-2021
Publisher: IOP Publishing
Journal Title: Japanese Journal of Applied Physics (JJAP)
Volume: 60
Issue: SB
Start Page: SBBH07
Publisher DOI: 10.35848/1347-4065/abd709
Abstract: Hyperfine interaction in a quantum dot produces a spin-coupled system between an injected electron and a few tens of thousands of nuclei in the electron wavefunction. We report here that the double bistable phenomenon of nuclear spin polarization (NSP) can be observed by sweeping three control parameters. All the observations indicate that the NSP has three stable branches under a longitudinal magnetic field, whereas the number of the stable branches of NSP has been believed to be two at most. The incorporation of the electron spin relaxation due to the nuclear spin fluctuation enables reproduction of the observed features of the NSP and the electron spin polarization.
Rights: © [2021] The Japan Society of Applied Physics
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 足立 智

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