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Title

Anisotropic magnetic, transport and thermodynamic properties of novel tetragonal Ce2RhGa12 compound
Authors
Nallamuthu, S.
Rashid, T.P.
Krishnakumar, V.
Besnard, Céline
Hagemann, Hans-Rudolf
Reiffers, Marian
Nagalakshmi, R.
Published in Journal of Alloys and Compounds. 2014, vol. 604, p. 379-383
Abstract We report on a comprehensive study of the magnetization, resistivity and heat capacity on the single crystals of Ce2RhGa12 synthesized using Ga flux. Single crystal X-ray diffraction data confirm the tetragonal Pb/nbm structure of Ce2RhGa12, which is isostructural to Ce2PdGa12. Ce2RhGa12 orders antiferromagnetically at TN = 3.5 K and exhibits anisotropic magnetic behavior, inferred from the magnetization and resistivity data, taken along the two principal crystallographic directions of the crystal, viz., along [100] and [001]. The anisotropic magnetic response of Ce2RhGa12 establishes [001] as the easy axis of magnetization, and a weak meta-magnetic transition is also observed in the magnetic isotherm at 2K along the same axis. A sharp peak in specific heat signals the bulk antiferromagnetic transition at TN = 3.5 K, which shifts to lower temperatures in low applied fields. The electrical resistivity along the two directions shows metallic behavior from 300K down to 1.8K and establishes Ce2RhGa12 as a normal, trivalent cerium compound.
Keywords Intermetallic — Anisotropy — Heavy fermions — Heat capacity — Magnetization
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Other version: http://linkinghub.elsevier.com/retrieve/pii/S0925838814006550
Structures
Faculté des sciences / Section de chimie et biochimie / Département de chimie physique
Research group Groupe Hagemann
Citation
(ISO format) 		NALLAMUTHU, S. et al. Anisotropic magnetic, transport and thermodynamic properties of novel tetragonal Ce2RhGa12 compound. In: Journal of Alloys and Compounds, 2014, vol. 604, p. 379-383. https://archive-ouverte.unige.ch/unige:37941

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Deposited on : 2014-06-18

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