Magnetic anisotropy of Tb1−xGdxMn6Sn6 compounds |
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Authors: | P.B. Terent&rsquo ev,N.V. MushnikovV.S. Gaviko,L.A. ShrederE.V. Rosenfeld |
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Affiliation: | Institute of Metal Physics, Ural Branch of the Academy of Sciences, S. Kovalevskaya 18, 620041 Ekaterinburg, Russia |
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Abstract: | Magnetization curves of Tb1−xGdxMn6Sn6 compounds (0?x?1) have been measured for aligned powder samples in the temperature range 4.2–300 K in pulsed magnetic fields up to 30 T. Temperature and concentration dependences of the magnetocrystalline anisotropy constants K1 and K2 and concentration dependence of the temperature of spontaneous spin-reorientation transition have been determined. Using these data, we estimated the contribution of the manganese and terbium atoms to the magnetic anisotropy of Tb1−xGdxMn6Sn6 and analyzed the origin of the appearance of field-induced first-order magnetic phase transition in these compounds. |
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Keywords: | 75.30.Gw 75.30.Kz |
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