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Ballistic spin interferometer using the Rashba effect

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Title: Ballistic spin interferometer using the Rashba effect
Authors: Koga, Takaaki Browse this author →KAKEN DB
Nitta, Junsaku Browse this author
Veenhuizen, Marc van Browse this author
Issue Date: 2004
Publisher: American Physical Society
Journal Title: Physical Review B
Volume: 70
Issue: 161302(R)
Start Page: 161302-1
End Page: 161302-4
Publisher DOI: 10.1103/PhysRevB.70.161302
Abstract: We propose a ballistic spin interferometer using a square loop (SL) geometry, where an incident electron wave packet is split into a pair of partial waves by a "hypothetical" beam splitter. These electron partial waves, then, follow the SL path in the clockwise and counterclockwise directions, respectively, so that they interfere with each other at the incident point, retaining the spin degree of freedom. We find that the backscattering probability of an incident electron can be largely modulated by varying the magnitude of the Rashba spin-orbit coupling constant . We propose to make the proposed spin interferometry experiment using an artificial nanostructure fabricated in, for example, In0.52Al0.48As/In0.53Ga0.47As/In0.52Al0.48As quantum wells.
Rights: Copyright © 2004 American Physical Society
Type: article
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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