Magnetic resonances in EuSn$_2$As$_2$ single crystal

Autor: Golovchanskiy, I. A., Maltsev, E. I., Shchetinin, I. V., Vlasenko, V. A., Dzhumaev, P. S., Pervakov, K., Emelyanova, O. V., Tsvetkov, A. Yu., Abramov, N. N., Pudalov, V. M., Stolyarov, V. S.
Rok vydání: 2022
Předmět:
Zdroj: J. Magn. Magn. Mater. (2022)
Druh dokumentu: Working Paper
DOI: 10.1016/j.jmmm.2022.169713
Popis: In this work, we report the broad-band ferromagnetic resonance spectroscopy of EuSn$_2$As$_2$ single crystals at different temperatures in combination with magnetization measurements and structural characterization. We observe conventional collective acoustic resonance mode of the A-type antiferromagnetic spin-flop phase in the Eu sub-lattice, and its transition to the paramagnetic resonance above the ordering temperature. Furthermore, we observe reproducibly additional well-defined spectral line. The origin of the additional line remains unclear. However, its temperature dependence attributes it to magnetism in the Eu sub-lattice.
Comment: 6 pages, 4 figures, 34 references
Databáze: arXiv