Antiferromagnetism and heavy-fermion effects in a semiconductor: Sm3Te4

U. Ahlheima, K. Fraasa, P. H. P. Reindersa, F. Steglicha,O.Nakamura, T. Suzukib and T. Kasuya

Specific heat measurements were carried out down to 80 mK in magnetic fields up to 8 T on Sm3Te4. Two sharp antiferromagnetic phase transitions were observed at 0.7 and 0.9 K. At 1.4 K, the specific heat shows a broad peak which can be fitted by the impurity Kondo model for View the MathML source. Heavy-fermion character at low temperature was established with a large γ-value, 0.6 J/K2 mol Sm3+.

Antiferromagnetism and heavy-fermion effects in a semiconductor: Sm3Te4

Journal of Magnetism and Magnetic Materials

Vol.108

213

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