Magnetoresistance behavior of ternary Ce alloys

Das, I. ; Sampathkumaran, E. V. (1995) Magnetoresistance behavior of ternary Ce alloys Physical Review B: Condensed Matter and Materials Physics, 51 (2). pp. 1308-1310. ISSN 1098-0121

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Magnetoresistance (Δρ/ρ) behavior of the alloys CePt2Ge2, CeNixGa4−x (x=0.5 and 1.1), CeCuxGa4−x (x=0.5 and 1.25), and CeRu4Sn6 has been investigated. The results support our earlier conclusion that CePt2Ge2 is characterized by a low value of Kondo temperature. The data on Ce-Ni(Cu)-Ga alloys are consistent with the existence of a competition between magnetism and Kondo effect as a function of composition. With respect to CeRu4Sn6, we observe negative Δρ/ρ below 7 K and there is a change in the sign above 7 K, and this behavior is similar to that noted for Ce3Bi4Pt3.

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