TbRhSn and DyRhSn - Detailed magnetic and ^{119}Sn Mössbauer spectroscopic studies

doi:10.1016/j.intermet.2013.10.020

TbRhSn and DyRhSn - Detailed magnetic and ^{119}Sn Mössbauer spectroscopic studies

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TbRhSn and DyRhSn - Detailed magnetic and ^{119}Sn Mössbauer spectroscopic studies

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punktacja MEiN [2014 A]: 30

title:	TbRhSn and DyRhSn - Detailed magnetic and ^{119}Sn Mössbauer spectroscopic studies
author:	Gurgul Jacek, Łątka Kazimierz , Pacyna Andrzej W., Peter Sebastian C., Pöttgen Rainer
journal title:	Intermetallics
volume:	46
date of publication :	2014
pages:	56-64
ISSN:	0966-9795
eISSN:	1879-0216
DOI:	10.1016/j.intermet.2013.10.020
language:	English
journal language:	English
abstract in English:	The results of magnetic studies and Mössbauer spectroscopic investigations are reported for the stannides TbRhSn and DyRhSn crystallizing in the hexagonal ZrNiAl-type structure. The polycrystalline samples of these ternary intermetallics were synthesized by arc melting from metallic precursors. Detailed ^{119}Sn Mössbauer spectroscopic studies are used to investigate the hyperfine interactions and their temperature evolutions at places occupied by the diamagnetic tin nuclei. Magnetic properties of DyRhSn and TbRhSn were studied by AC/DC magnetometry in a wide temperature range. The results show that both compounds are magnetically ordered at low temperatures. DyRhSn is a non-collinear antiferromagnet with the Néel temperature T_{N} = 7.5 K, whereas TbRhSn undergoes a transition from a paramagnetic to an antiferromagnetic state at T_{N} = 20.2 K. An additional transition at T_{SR} = 10.3 K is detected for TbRhSn which corresponds to some changes in the magnetic moments ordering. The role of the magnetostriction effect in the evolution of the hyperfine parameters and its influence on the observed TbRhSn Mössbauer spectra is discussed. Triangular-like antiferromagnetic arrangements with rare-earth magnetic moments lying in the hexagonal plane are proposed for both compounds at very low temperatures.
keywords in English:	rare-earth intermetallics, magnetic properties, spectroscopic methods
number of pulisher's sheets:	0,5
affiliation:	Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper

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