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Determination of the crystal field parameters in SmFe11Ti

Abstract : The magnetization of SmFe11Ti single crystals has been measured along the principal crystallographic directions in steady (14 T) and pulsed (43 T) magnetic fields. The fourfold symmetry axis [001] is an easy magnetization direction. The magnetization curves measured in directions perpendicular to [001] are remarkable in two ways: (i) They do not depend on orientation of H within the basal plane; (ii) at low temperature they are S shaped, with an inflection point at about 0.6 times saturation magnetization. These two facts enable us to conclude that three out of five crystal field parameters of SmFe11Ti are negligibly small; only A02 and A06 are essentially nonzero. A comparison with an isomorphous compound DyFe11Ti reveals a dramatic disparity of their crystal fields, especially as regards A44 , nearly zero in SmFe11Ti but outstandingly large in DyFe11Ti.
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Contributeur : Léopold Diop <>
Soumis le : mercredi 9 septembre 2020 - 09:39:16
Dernière modification le : samedi 3 octobre 2020 - 03:29:54


PRB 102 064423 (2020).pdf
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L. V. B. Diop, M. D. Kuz'Min, Y. Skourski, K. P. Skokov, I. A. Radulov, et al.. Determination of the crystal field parameters in SmFe11Ti. Physical Review B, American Physical Society, 2020, 102 (6), ⟨10.1103/PhysRevB.102.064423⟩. ⟨hal-02934166⟩



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