Determination of spin-orbit interaction in InAs heterostructure

Tae Young Lee, Hyun Cheol Koo, Kyung Ho Kim, Hyung Jun Kim, Joonyeon Chang, Suk Hee Han

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Spin-orbit interaction (SOI) gives a useful tool to control spin precession in the semiconductor without external magnetic field. The Rashba effect induced by spin-orbit interaction enables to imagine the spin field effect transistor in which the resistance modulation is achieved by precession of spins moving in a channel. The oscillatory magnetoresistance was measured to determine SOI parameter of inverted type high electron mobility transistor structure where InAs quantum well is inserted to InAlAs/InGaAs barrier layer. The band structure and electron charge distribution of the structure was calculated using WinGreen simulator. Observed SOI parameters are large enough to produce high Rashba field of about a few Tesla. The magnitude of the SOI parameter is subject to change with the InAs quantum-well thickness.

Original languageEnglish
Article number4957723
Pages (from-to)2383-2385
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number6
Publication statusPublished - 2009 Jun

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported by the KIST Institutional Program.


  • Quantum well
  • Rashba effect
  • Shubnikov-de Hass oscillation
  • Spin-orbit interaction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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