Effects of Rashba and Dresselhaus spin-orbit interactions on the ground state of two-dimensional localized spins

J. H. Oh; Kyoung Jin Lee; Hyun Woo Lee; M. Shin

doi:10.1088/0953-8984/26/19/196005

Effects of Rashba and Dresselhaus spin-orbit interactions on the ground state of two-dimensional localized spins

J. H. Oh, Kyoung Jin Lee, Hyun Woo Lee, M. Shin

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

Starting with the indirect exchange model influenced by the Rashba and the Dresselhaus spin-orbit interactions, we derive the Dzyaloshinskii-Moriya interaction of localized spins. The strength of the Dzyaloshinskii-Moriya interaction is compared with that of the Heisenberg exchange term as a function of atomic distance. Using the calculated interaction strengths, we discuss the formation of various atomic ground states as a function of temperature and external magnetic field. By plotting the magnetic field-temperature phase diagram, we present approximate phase boundaries between the spiral, Skyrmion and ferromagnetic states of the two-dimensional weak ferromagnetic system.

Original language	English
Article number	196005
Journal	Journal of Physics Condensed Matter
Volume	26
Issue number	19
DOIs	https://doi.org/10.1088/0953-8984/26/19/196005
Publication status	Published - 2014 May 14

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Keywords

indirect interaction model
skyrmion
spin texture
spin-orbit interaction

ASJC Scopus subject areas

Condensed Matter Physics
Materials Science(all)

Cite this

Oh, J. H., Lee, K. J., Lee, H. W., & Shin, M. (2014). Effects of Rashba and Dresselhaus spin-orbit interactions on the ground state of two-dimensional localized spins. Journal of Physics Condensed Matter, 26(19), [196005]. https://doi.org/10.1088/0953-8984/26/19/196005

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AB - Starting with the indirect exchange model influenced by the Rashba and the Dresselhaus spin-orbit interactions, we derive the Dzyaloshinskii-Moriya interaction of localized spins. The strength of the Dzyaloshinskii-Moriya interaction is compared with that of the Heisenberg exchange term as a function of atomic distance. Using the calculated interaction strengths, we discuss the formation of various atomic ground states as a function of temperature and external magnetic field. By plotting the magnetic field-temperature phase diagram, we present approximate phase boundaries between the spiral, Skyrmion and ferromagnetic states of the two-dimensional weak ferromagnetic system.

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10.1088/0953-8984/26/19/196005