Channel width effect on the spin-orbit interaction parameter in a two-dimensional electron gas

Jae Hyun Kwon, Hyun Cheol Koo, Joonyeon Chang, Suk Hee Han, Jonghwa Eom

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The spin splitting energy obtained from the Shubnikov-de Haas oscillation increases with decreasing channel width (w) of the InAs-based heterostructure. Since the surface charge concentration depends only weakly on w, the channel width dependence of the spin splitting energy is attributed to variations in the spin-orbit interaction strength. The spin-orbit interaction parameter was found to be inversely proportional to w in the range of w=2-64 μm. Our findings indicate that a strong spin-orbit interaction is induced in a narrow channel due to suppression of the spin precession length for a thin quantum well layer system.

Original languageEnglish
Article number112505
JournalApplied Physics Letters
Volume90
Issue number11
DOIs
Publication statusPublished - 2007 Mar 23
Externally publishedYes

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spin-orbit interactions
electron gas
precession
retarding
quantum wells
oscillations
energy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Channel width effect on the spin-orbit interaction parameter in a two-dimensional electron gas. / Kwon, Jae Hyun; Koo, Hyun Cheol; Chang, Joonyeon; Han, Suk Hee; Eom, Jonghwa.

In: Applied Physics Letters, Vol. 90, No. 11, 112505, 23.03.2007.

Research output: Contribution to journalArticle

Kwon, Jae Hyun ; Koo, Hyun Cheol ; Chang, Joonyeon ; Han, Suk Hee ; Eom, Jonghwa. / Channel width effect on the spin-orbit interaction parameter in a two-dimensional electron gas. In: Applied Physics Letters. 2007 ; Vol. 90, No. 11.
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