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Ballistic spin interferometer using the Rashba effect
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 |
Relation: | http://www.aps.org/ |
Type: | article |
URI: | http://hdl.handle.net/2115/14680 |
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)
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Submitter: 古賀 貴亮
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