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Critical behavior of a monoaxial chiral helimagnet

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Abstract

We analyze the critical behavior of magnetically ordered phases appearing in a monoaxial chiral helimagnet in a weak external magnetic field. Using the formalism of the equations of state in the critical region, we determine the temperature dependence of the order parameters for the conical phase and the soliton-lattice phase. We calculated the critical exponents and show that they coincide with those in the three-dimensional Heisenberg model.

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Authors and Affiliations

  1. Institute of Natural Sciences, Yeltsin Ural Federal University, Ekaterinburg, Russia

    A. S. Ovchinnikov, I. G. Bostrem & Vl. E. Sinitsyn

  2. Division of Natural and Environmental Sciences, The Open University of Japan, Chiba, Japan

    J. Kishine

Authors
  1. A. S. Ovchinnikov
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  2. I. G. Bostrem
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  3. Vl. E. Sinitsyn
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  4. J. Kishine
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Corresponding author

Correspondence to A. S. Ovchinnikov.

Additional information

This research was supported by the Japan Society for the Promotion of Science, KAKENHI Program (Grant Nos. 25287087 and 25220803), the Russian Government (Document 211, Contract No. 02.A03.21.0006), the Russian Ministry of Education and Science (Project Nos. 1437 and 2725), and the Russian Foundation for Basic Research (Grant No. 17-52-500131).

The research of Vl. E. Sinitsyn is supported by the Support Program for Young Scientists with a Candidate’s Degree (Grant No. MK-6230.2016.2).

Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 191, No. 3, pp. 518–534, June, 2017.

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Ovchinnikov, A.S., Bostrem, I.G., Sinitsyn, V.E. et al. Critical behavior of a monoaxial chiral helimagnet. Theor Math Phys 191, 924–938 (2017). https://doi.org/10.1134/S0040577917060101

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