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- W1979646720 abstract "We have carried out structural, magnetic and transport measurements on CeNi 0.85 T 0.15 Sn (T=Ni, Ru, Rh and Pd) alloys in order to understand the complex low-temperature transport properties of the Kondo semiconductor CeNiSn. The resistivity measurements show that the observed low-temperature rise in the resistivity of CeNiSn becomes less pronounced with Ru and Pd substitution. Further, the resistivity of CeNi 0.85 Rh 0.15 Sn alloy shows the onset of the coherent Kondo-lattice ground state below 18 K and exhibits a T 2 behaviour below 7 K. The observed large negative magnetoresistance in CeNiSn at 1.7 K suggests that the energy gap decreases as the magnetic field increases. Positive magnetoresistance is observed in LaNiSn and CeNiSn at high temperatures and high fields. The negative magnetoresistance of CeNi 0.85 T 0.15 Sn (T=Rh and Pd) alloys exhibits a scaling behaviour as proposed by Schlottmann for single ion Kondo impurity. CeNi 0.85 Rh 0.15 Sn alloy exhibits positive magnetoresistance at 2 K and negative minimum magnetoresistance at 5 K, which further confirms the presence of a coherent Kondo-lattice ground state. The susceptibilities of all these alloys exhibit Curie–Weiss behaviour in the high-temperature regime." @default.
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- W1979646720 date "1998-03-01" @default.
- W1979646720 modified "2023-10-16" @default.
- W1979646720 title "Coherent Kondo-lattice ground state in CeNi0.85Rh0.15Sn alloy" @default.
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- W1979646720 doi "https://doi.org/10.1016/s0925-8388(97)00624-5" @default.
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