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- W2897456169 abstract "Abstract X-ray diffraction, crystal structure, magnetization, and heat capacity results are presented for the rare earth – chalcogenide ternary system PrCu0.45Te2 and its non-4f analogue LaCu0.40Te2. The crystal structure of PrCu0.45Te2 is characterized by chains of edge and corner-sharing CuTe4 tetrahedra and Pr centered in polyhedra comprised of Cu and Te. The Cu site is partially occupied and exhibits signatures of local disorder. Magnetic susceptibility measurements show a Curie-Weiss temperature dependence consistent with a Pr3+ state. No magnetic ordering is observed down to 1.8 K, but the negative Curie-Weiss temperature suggests an antiferromagnetic exchange interaction. Importantly, the low temperature heat capacity of PrCu0.45Te2 is strongly enhanced by comparison to LaCu0.40Te2, suggesting that there is a build-up of entropy that is associated with the 4f-electrons from the Pr3+ ions. These features reveal possible spin frustration behavior and introduce this family of materials as a template for studying new phenomenon." @default.
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- W2897456169 date "2019-01-01" @default.
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- W2897456169 title "One-dimensional tellurium chains: Crystal structure and thermodynamic properties of PrCuxTe2 (x ~ 0.45)" @default.
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- W2897456169 doi "https://doi.org/10.1016/j.jssc.2018.10.008" @default.
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