Regensburg 2022 – scientific programme

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MA: Fachverband Magnetismus

MA 32: Bulk Materials: Soft and Hard Permanent Magnets

MA 32.5: Talk

Thursday, September 8, 2022, 16:00–16:15, H43

magnetocrystalline anisotropy in easy-plane kagomé ferromagnet Fe₃Sn — •Lilian Prodan¹, Vladimir Tsurkan^1,2, and István Kézsmárki¹ — ¹Experimental Physics V, Institute of Physics, University of Augsburg, D-86159 Augsburg, Germany — ²Institute of Applied Physics, MD 2028, Chisinau, Republic of Moldova

Kagomé magnets are expected to host exotic magnetic and electronic properties due to possible interplay of spin-orbit coupling (SOC) and specific topology of the energy band structures [1,2,3]. Here, we present the field-dependent and angular-dependent magnetization studies of the kagomé -lattice easy-plane ferromagnet Fe₃Sn. The SOC is probed by the measurements of the magnetocrystalline anisotropy in high-quality bulk single crystals. Measurements in high fields reveal the difference in the saturation magnetization along the a and the c axes, which does not vanish up to the highest applied field of 14 T. The anisotropy evidenced in the saturation moment indicates a possible contribution of the orbital moment. The temperature dependence of the magnetocrystalline anisotropy constants K₁ and K₂ was determined. [1] L. Ye et al., Nature 555, 638 (2018), M. Altthaler et al., Phys. Rev. Research 3, 043191 (2021), J. Watanabe, et al., arXiv:2202.06665 (2022).