Rectangular model of a ballistic spin interferometer in (001) InGaAs/InAlAs quantum wells

Koga, Takaaki; Faniel, S.; Mineshige, S.; Mastuura, T.; Sekine, Y.

doi:10.1016/j.phpro.2010.01.185


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Rectangular model of a ballistic spin interferometer in (001) InGaAs/InAlAs quantum wells

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Title:	Rectangular model of a ballistic spin interferometer in (001) InGaAs/InAlAs quantum wells
Authors:	Koga, Takaaki Browse this author →KAKEN DB
	Faniel, S. Browse this author
	Mineshige, S. Browse this author
	Mastuura, T. Browse this author
	Sekine, Y. Browse this author
Keywords:	spintronics
	spin interference
	Rashba effect
	Dresselhaus effect
	spin-orbit interaction
	quantum wells
	mesoscopic transport
Issue Date:	31-Jan-2010
Publisher:	Elsevier B.V.
Journal Title:	Physics Procedia
Volume:	3
Issue:	2
Start Page:	1325
End Page:	1328
Publisher DOI:	10.1016/j.phpro.2010.01.185
Abstract:	We report an unambiguous detection of the crytalline anisotropy of the spin-orbit interaction in (001) InAlAs/InGaAs/InAlAs quantum wells using nanofabricated rectangular loop arrays, where the sides of the constituent loops are aligned along either the [110] or [110￣] crystallographic axis. The fabrication and measurements were performed on the epi-wafer samples whose spin properties were characterized previously [Koga et al., Phys. Rev. Lett 89, 046801 (2002)]. We find that the experimentally observed spin interference patterns ― the amplitude modulation of the Al'tshuler-Aronov-Spivak oscillations as a function of the gate voltage ― are in good agreement with the results of the spin interferometer model extended for rectangular loops and including both the Rashba and Dresselhaus spin-orbit interactions.
Type:	article (author version)
URI:	http://hdl.handle.net/2115/49487
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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