In:
physica status solidi (b), Wiley, Vol. 250, No. 3 ( 2013-03), p. 506-510
Abstract:
CePdAl crystallizes in the hexagonal ZrNiAl‐type structure (space group $P\overline {6} 2m$ ), where the magnetic Ce 3+ ions form a network of equilateral triangles in the ab plane similar to the kagomé lattice. It is a well known antiferromagnetic heavy‐fermion system with Néel temperature T N = 2.7 K. Magnetization and specific‐heat measurements performed on CePd 1 − x Ni x Al polycrystals show that the antiferromagnetic order in the system is suppressed by Ni substitution. T N is reduced to zero temperature at a Ni concentration x = 0.144. At high temperatures the magnetization data follow a Curie–Weiss law. The Weiss temperature $\Theta $ is negative with $\left| {\Theta } \right|$ increasing with x possibly due to the increasing Kondo effect. Indeed, the Kondo temperature increases with x as documented by an analysis of the specific heat and magnetic entropy of CePd 1 − x Ni x Al for the samples with x = 0, 0.062, 0.097, and 0.144.
Type of Medium:
Online Resource
ISSN:
0370-1972
,
1521-3951
DOI:
10.1002/pssb.201200931
Language:
English
Publisher:
Wiley
Publication Date:
2013
detail.hit.zdb_id:
208851-4
detail.hit.zdb_id:
1481096-7
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