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Anisotropic spin interference in InGaAs/InAlAs rectangular loop arrays

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Title: Anisotropic spin interference in InGaAs/InAlAs rectangular loop arrays
Authors: Faniel, S. Browse this author
Matsuura, T. Browse this author
Mineshige, S. Browse this author
Sekine, Y. Browse this author
Koga, Takaaki Browse this author →KAKEN DB
Keywords: spin-orbit interaction
quantum interference
AAS oscillations
Aharonov-Casher effect
InGaAs
Issue Date: Feb-2010
Publisher: Elsevier B.V.
Journal Title: Physica E : Low-dimensional Systems and Nanostructures
Volume: 42
Issue: 4
Start Page: 990
End Page: 993
Publisher DOI: 10.1016/j.physe.2009.10.022
Abstract: We report the experimental detection of the anisotropic spin-orbit interaction (SOI) in InGaAs/InAlAs quantum wells, using spin interference experiments in arrays of rectangular loops with their sides aligned to the [110] and [110‾] crystallographic directions. While the gate voltage is tuned, the time reversal Aharonov-Casher (TRAC) oscillations exhibit higher frequencies when the loops have their longer side along the [110] direction, clearly highlighting the anisotropy of the SOI. We find that a simple spin interferometer model, including both the Rashba and the Dresselhaus SOIs, reproduces qualitatively the TRAC oscillations.
Type: article (author version)
URI: http://hdl.handle.net/2115/46944
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 古賀 貴亮

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