Separation of Rashba and Dresselhaus spin-orbit interactions using crystal direction dependent transport measurements

Youn Ho Park; Hyung Jun Kim; Joonyeon Chang; Suk Hee Han; Jonghwa Eom; Heon Jin Choi; Hyun Cheol Koo

doi:10.1063/1.4855495

Separation of Rashba and Dresselhaus spin-orbit interactions using crystal direction dependent transport measurements

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

KU-KIST Graduate School of Converging Science and Technology

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

The Rashba spin-orbit interaction effective field is always in the plane of the two-dimensional electron gas and perpendicular to the carrier wavevector but the direction of the Dresselhaus field depends on the crystal orientation. These two spin-orbit interaction parameters can be determined separately by measuring and analyzing the Shubnikov-de Haas oscillations for various crystal directions. In the InAs quantum well system investigated, the Dresselhaus term is just 5% of the Rashba term. The gate dependence of the oscillation patterns clearly shows that only the Rashba term is modulated by an external electric field.

Original language	English
Article number	252407
Journal	Applied Physics Letters
Volume	103
Issue number	25
DOIs	https://doi.org/10.1063/1.4855495
Publication status	Published - 2013 Dec 16

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2010-0017457) and the KIST Institutional Program (2E24002, 2E23790).

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4855495

Cite this

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abstract = "The Rashba spin-orbit interaction effective field is always in the plane of the two-dimensional electron gas and perpendicular to the carrier wavevector but the direction of the Dresselhaus field depends on the crystal orientation. These two spin-orbit interaction parameters can be determined separately by measuring and analyzing the Shubnikov-de Haas oscillations for various crystal directions. In the InAs quantum well system investigated, the Dresselhaus term is just 5% of the Rashba term. The gate dependence of the oscillation patterns clearly shows that only the Rashba term is modulated by an external electric field.",

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AU - Eom, Jonghwa

AU - Choi, Heon Jin

AU - Cheol Koo, Hyun

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2010-0017457) and the KIST Institutional Program (2E24002, 2E23790). Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

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Y1 - 2013/12/16

N2 - The Rashba spin-orbit interaction effective field is always in the plane of the two-dimensional electron gas and perpendicular to the carrier wavevector but the direction of the Dresselhaus field depends on the crystal orientation. These two spin-orbit interaction parameters can be determined separately by measuring and analyzing the Shubnikov-de Haas oscillations for various crystal directions. In the InAs quantum well system investigated, the Dresselhaus term is just 5% of the Rashba term. The gate dependence of the oscillation patterns clearly shows that only the Rashba term is modulated by an external electric field.

AB - The Rashba spin-orbit interaction effective field is always in the plane of the two-dimensional electron gas and perpendicular to the carrier wavevector but the direction of the Dresselhaus field depends on the crystal orientation. These two spin-orbit interaction parameters can be determined separately by measuring and analyzing the Shubnikov-de Haas oscillations for various crystal directions. In the InAs quantum well system investigated, the Dresselhaus term is just 5% of the Rashba term. The gate dependence of the oscillation patterns clearly shows that only the Rashba term is modulated by an external electric field.

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Separation of Rashba and Dresselhaus spin-orbit interactions using crystal direction dependent transport measurements

Abstract

Bibliographical note

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