Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 19, Issue 32, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/19/32/326205
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The competition between magnetic ordering and the Kondo effect in Ce2RhSi3, ordering antiferromagnetically at 7 K, is investigated by the measurements of magnetization, heat capacity and electrical resistivity on the solid solutions, Ce2-xLaxRhSi3, Ce2-yYyRhSi3, and Ce2RhSi3-zGez, as well as by high-pressure studies on this compound. The trends in the Kondo and Neel temperature variations among these alloys are compared to infer the roles of unit-cell volume and electronic structure changes. On the basis of the results, we infer that this compound lies at the peak of Doniach's magnetic phase diagram. The high-pressure electrical resistivity data indicate that the quantum critical point for this compound is in the vicinity of 4 GPa.
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