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arXiv · 2108.03847

Antiferromagnetic resonances in twinned EuFe2As2 single crystal

I. A. Golovchanskiy·N. N. Abramov·V. A. Vlasenko·K. Pervakov·I. V. Shchetinin·P. S. Dzhumaev·O. V. Emelianova·D. Baranov·D. S. Kalashnikov·K. B. Polevoy·V. M. Pudalov·V. S. Stolyarov
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Abstract

In this work, we report ferromagnetic resonance spectroscopy of EuFe2As2 single crystals. We observe ferromagnetic resonance responses, which are attributed to antiferromagnetic resonances of Eu sub-lattice with orthorhombic crystal structure and with different orientations of twin domains relative to the external field. We confirm validity of the recently-proposed spin Hamiltonian with anisotropic Eu-Eu exchange interaction and biquadratic Eu-Fe exchange interaction.

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I. A. Golovchanskiy, N. N. Abramov, V. A. Vlasenko, K. Pervakov, I. V. Shchetinin, P. S. Dzhumaev, O. V. Emelianova, D. Baranov, D. S. Kalashnikov, K. B. Polevoy, V. M. Pudalov, V. S. Stolyarov. 2021-08-09. Antiferromagnetic resonances in twinned EuFe2As2 single crystal. https://doi.org/10.1103/physrevb.106.024412

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