Title:	Temperature-induced changes in the magnetism of Laves phase rare-earth-iron intermetallics by ab initio calculations
Authors:	Šipr, Ondřej Mankovsky, Sergiy Vackář, Jiří Ebert, Hubert Marmodoro, Alberto
Citation:	ŠIPR, O. MANKOVSKY, S. VACKÁŘ, J. EBERT, H. MARMODORO, A. Temperature-induced changes in the magnetism of Laves phase rare-earth-iron intermetallics by ab initio calculations. Physical Review B, 2022, roč. 106, č. 14, s. nestránkováno. ISSN: 2469-9950
Issue Date:	2022
Publisher:	American Physical Society
Document type:	článek article
URI:	2-s2.0-85140646375 http://hdl.handle.net/11025/51620
ISSN:	2469-9950
Keywords in different language:	ray circular-dichroism;hyperfine interactions;spin;magnetization;anisotropy;GDFE2
Abstract in different language:	Laves RFe 2 compounds, where R is a rare earth, exhibit technologically relevant properties associated with the interplay between their lattice geometry and magnetism. We apply ab initio calculations to explore how magnetic properties of Fe in RFe 2 systems vary with temperature. We found that the ratio between the orbital magnetic moment μorb and the spin magnetic moment μspin increases with increasing temperature for YFe 2 , GdFe 2 , TbFe 2 , DyFe 2 , and HoFe 2 . This increase is significant and it should be experimentally observable by means of x-ray magnetic circular dichroism. We conjecture that the predicted increase of the μorb/μspin ratio with temperature is linked to the reduction of hybridization between same-spin-channel states of atoms with fluctuating magnetic moments and to the associated increase of their atomic-like character.
Rights:	Plný text není přístupný. © American Physical Society
Appears in Collections:	Články / Articles (RAM) OBD

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