Positive and negative pressure effects on the magnetic ordering and the Kondo effect in the compound Ce<SUB>2</SUB>RhSi<SUB>3</SUB>
- Nakano, T.
- Sengupta, Kausik
- Rayaprol, Sudhindra
- Hedo, M.
- Uwatoko, Y.
- Sampathkumaran, E. V.
DOIAbstract
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 Néel 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 vici...
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