Observation of gate-controlled spinorbit interaction using a ferromagnetic detector

Youn Ho Park, Hyun Cheol Jang, Hyun Cheol Koo, Hyung Jun Kim, Joonyeon Chang, Suk Hee Han, Heon Jin Choi

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

From the Shubnikov-de Haas oscillation, estimation of the spinorbit interaction parameter is possible only for very low temperature. An alternative method available for much wider temperature range is utilizing the ferromagnetic electrode which contacts the quantum well channel and reads the Fermi level of spin-up and -down subbands. The amount of spin-subband shift is controlled by a gate electric field and finally the spinorbit interaction induced by Rashba effect is obtained near room temperature. At T = 150 K, a gate voltage shifts the spin subband potential and changes the spinorbit interaction parameter by 23.

Original languageEnglish
Article number07C317
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
Publication statusPublished - 2012 Apr 1
Externally publishedYes

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detectors
shift
interactions
quantum wells
oscillations
electrodes
electric fields
electric potential
room temperature
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Park, Y. H., Cheol Jang, H., Koo, H. C., Kim, H. J., Chang, J., Han, S. H., & Choi, H. J. (2012). Observation of gate-controlled spinorbit interaction using a ferromagnetic detector. Journal of Applied Physics, 111(7), [07C317]. https://doi.org/10.1063/1.3677936

Observation of gate-controlled spinorbit interaction using a ferromagnetic detector. / Park, Youn Ho; Cheol Jang, Hyun; Koo, Hyun Cheol; Kim, Hyung Jun; Chang, Joonyeon; Han, Suk Hee; Choi, Heon Jin.

In: Journal of Applied Physics, Vol. 111, No. 7, 07C317, 01.04.2012.

Research output: Contribution to journalArticle

Park, YH, Cheol Jang, H, Koo, HC, Kim, HJ, Chang, J, Han, SH & Choi, HJ 2012, 'Observation of gate-controlled spinorbit interaction using a ferromagnetic detector', Journal of Applied Physics, vol. 111, no. 7, 07C317. https://doi.org/10.1063/1.3677936
Park, Youn Ho ; Cheol Jang, Hyun ; Koo, Hyun Cheol ; Kim, Hyung Jun ; Chang, Joonyeon ; Han, Suk Hee ; Choi, Heon Jin. / Observation of gate-controlled spinorbit interaction using a ferromagnetic detector. In: Journal of Applied Physics. 2012 ; Vol. 111, No. 7.
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