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Ferromagnetic Resonance Spectroscopy on the Kagome Magnet MgMn6Sn6
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DOI：10.1007/s00723-025-01806-8.png)
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Abstract
En 中文
MgMn6Sn6 is the itinerant ferromagnet on the kagome lattice with high ordering temperature featuring complex electronic properties due to the nontrivial topological electronic band structure where the spin-orbit coupling (SOC) plays a crucial role. Here, we report a detailed ferromagnetic resonance (FMR) spectroscopic study of MgMn6Sn6 aimed to elucidate and quantify the intrinsic magnetocrystalline anisotropy that is responsible for the alignment of the Mn magnetic moments in the kagome plane. By analyzing the frequency, magnetic field, and temperature dependences of the FMR modes, we have quantified the magnetocrystalline anisotropy energy density that reaches the value of approximately 3.5 center dot 106 erg/cm3 at T = 3 K and reduces to about 1 center dot 106 erg/cm3 at T = 300 K. The revealed significantly strong magnetic anisotropy suggests a sizable contribution of the orbital magnetic moment to the spin magnetic moment of Mn, supporting the scenario of the essential role of SOC for the nontrivial electronic properties of MgMn6Sn6.
Keywords:
MAGNETIZATION
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