CePt2Al2: Structural and Bulk PropertiesClick to copy article linkArticle link copied!
- Petr Doležal*Petr Doležal*Email: [email protected]Charles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicMore by Petr Doležal
- Elen Duverger-NédellecElen Duverger-NédellecCNRS, ICMCB, UMR 5026, University Bordeaux, F-33600 Pessac, FranceMore by Elen Duverger-Nédellec
- Zuzana MičkováZuzana MičkováCharles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicMore by Zuzana Mičková
- Petr ProschekPetr ProschekCharles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicMore by Petr Proschek
- Ksenia IllkováKsenia IllkováCzech Academy of Sciences, Institute of Plasma Physics, Za Slovankou 1782/3, 182 00 Prague 8, Czech RepublicMore by Ksenia Illková
- Stanislav DanišStanislav DanišCharles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicMore by Stanislav Daniš
- Kristína BarthaKristína BarthaCharles University, Faculty of Mathematics and Physics, Department of Physics of Materials, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicMore by Kristína Bartha
- Pavel JavorskýPavel JavorskýCharles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 121 16 Prague 2, Czech RepublicMore by Pavel Javorský
Abstract
This work is focused on the structural and physical properties of CePt2Al2, an intermetallic compound. At room temperature, the modulated orthorhombic structure Cmme(a00)000, with = (0.481, 0, 0) has been determined by single-crystal X-ray diffraction supplemented by dependence of lattice parameters above room temperature for which the X-ray powder diffraction was used. The compound undergoes a structural transition to a tetragonal structure above room temperature. This transition exhibits 50 °C hysteresis and creates a domain structure in the sample. The magnetic behavior has been studied by specific heat, magnetization, and transport measurements in the temperature range between 0.5 and 300 K. Specific heat and susceptibility shows an antiferromagnetic order below 2 K. On the basis of electrical resistivity and other bulk measurements, CePt2Al2 can be considered a Kondo lattice material. The presence of a modulated crystal structure opens the possibility of a charge density wave state in CePt2Al2 as observed for (Re)Pt2Si2.
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This article is cited by 1 publications.
- Stefan Seidel, Rainer Pöttgen. Coloring and distortion variants of the
bcc
packing and for the aristotypes BaAl
4
and CeMg
2
Si
2. Zeitschrift für Naturforschung B 2021, 76
(5)
, 249-262. https://doi.org/10.1515/znb-2021-0022
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