Curie temperature of ultrathin ferromagnetic layer with Dzyaloshinskii-Moriya interaction

Journal Article · Thu Aug 07 04:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4891995· OSTI ID:22314550

You, Chun-Yeol ^[1]

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1. Department of Physics, Inha University, Incheon 402-751 (Korea, Republic of)

We investigate the effect of the Dzyaloshinskii-Moriya interaction (DMI) on the Curie temperature of the ultrathin ferromagnetic layers. It has been known that the Curie temperature of the ferromagnet depends on spin wave excitation energies, and they are affected by DMI. Therefore, the ferromagnetic transition temperature of the ultrathin ferromagnetic layer must be sensitive on the DMI. We find that the Curie temperature depends on the DMI by using the double time Green's function method. Since the DMI is arisen by the inversion symmetry breaking structure, the DMI is always important in the inversion symmetry breaking ultrathin ferromagnetic layers.

• OSTI ID: 22314550
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 116; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CURIE POINT
EXCITATION
GREEN FUNCTION
INTERACTIONS
LAYERS
SPIN WAVES
SYMMETRY BREAKING