Effect of magnetic field and temperature on the structure of a two-dimensional magnetic on a substrate

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Abstract

We presented a study of the influence of temperature, external magnetic field, and non-magnetic substrate on a two-dimensional magnet with a skyrmion structure. The study was conducted using Monte Carlo simulation. The skyrmion structure was ensured by the presence of the Dzyaloshinsky-Moriya interaction and anisotropy in the energy of the system. The effect of the substrate was described by the Frenkel-Kontorova potential.

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About the authors

I. V. Maltsev

Chelyabinsk State University

Author for correspondence.
Email: malts_iv@mail.ru
Russian Federation, Chelyabinsk

I. A. Kuznetsov

Chelyabinsk State University

Email: malts_iv@mail.ru
Russian Federation, Chelyabinsk

I. V. Bychkov

Chelyabinsk State University

Email: malts_iv@mail.ru
Russian Federation, Chelyabinsk

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2. Fig. 1. Spin configuration and intensity profile for skyrmion phases at low temperature (T = 0.01). Arrows indicate spin directions in the XY plane.

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3. Fig. 2. Change in magnetic structure of SC1, SC2, SS phases under magnetic field. Dark and light areas indicate local chirality values χij. Arrows indicate spin directions in the XY plane.

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4. Fig. 3. Dependence of order parameter Q(T) for skyrmion phases SC1, SC2, SCh.

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5. Fig. 4. Dependence Q(T) for different values of substrate potential period b (αFK/g = 0.002).

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