TY - JOUR
T1 - Magnetization and specific heat of CePd1-xNixAl
AU - Fritsch, Veronika
AU - Huang, Chien Lung
AU - Bagrets, Nadezda
AU - Grube, Kai
AU - Schumann, Sarah
AU - Löhneysen, Hilbert V.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2013/3
Y1 - 2013/3
N2 - CePdAl crystallizes in the hexagonal ZrNiAl-type structure (space group P6̄2m), where the magnetic Ce3+ 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 TN=2.7K. Magnetization and specific-heat measurements performed on CePd1-xNixAl polycrystals show that the antiferromagnetic order in the system is suppressed by Ni substitution. TN 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 |Θ| is negative with Θ 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 CePd1-xNixAl for the samples with x=0, 0.062, 0.097, and 0.144.
AB - CePdAl crystallizes in the hexagonal ZrNiAl-type structure (space group P6̄2m), where the magnetic Ce3+ 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 TN=2.7K. Magnetization and specific-heat measurements performed on CePd1-xNixAl polycrystals show that the antiferromagnetic order in the system is suppressed by Ni substitution. TN 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 |Θ| is negative with Θ 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 CePd1-xNixAl for the samples with x=0, 0.062, 0.097, and 0.144.
UR - http://www.scopus.com/inward/record.url?scp=84875013871&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84875013871&partnerID=8YFLogxK
U2 - 10.1002/pssb.201200931
DO - 10.1002/pssb.201200931
M3 - Article
AN - SCOPUS:84875013871
VL - 250
SP - 506
EP - 510
JO - Physica Status Solidi (B): Basic Research
JF - Physica Status Solidi (B): Basic Research
SN - 0370-1972
IS - 3
ER -