Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5459503 | Journal of Alloys and Compounds | 2017 | 24 Pages |
Abstract
Two novel ternary rare-earth aluminides, CePd3Al2 and LaPd3Al2, were obtained by arc-melting the elements and subsequent annealing at 800 °C. Their crystal structures were determined from the single-crystal X-ray diffraction data. The compounds crystallize with their own structure type: space group Pnma, Z = 4, Pearson symbol oP24, а = 7.491(2) Ã
, b = 4.3575(17) Ã
, â¿Â =Â 13.123(4) Ã
for CePd3Al2 and а = 7.474(7) Ã
, b = 4.3755(17) Ã
, â¿Â =Â 13.323(9) Ã
for LaPd3Al2. The physical behavior of the Ce-based material was studied by means of magnetic, electrical resistivity and heat capacity measurements carried out down to 0.4Â K. The compound was characterized as an antiferromagnetic heavy-fermion system with the Néel temperature TNÂ =Â 1Â K and the Kondo energy scale of about 2Â K.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
E. Khamitcaeva, A. Tursina, A. Gribanov, D. Gnida, P. WiÅniewski, D. Kaczorowski,