Magnetic and thermoelectric properties of R3Cu3Sb4 (R=La, Ce, Gd, Er)

摘要: The rare-earth compounds R3Cu3Sb4 (R=La, Ce, Gd, Er) were synthesized in order to evaluate their potential for thermoelectric applications. Melting closed tantalum tubes was used get the materials without loss of volatile Sb components. structure and thermal expansion coefficients these determined by temperature-dependent x-ray diffraction measurements. We also effective magnetic moments ions valence state. resistivity measured over a large temperature range from 2 470 K. Hall-effect measurements performed 30 Additionally, thermopower conductivity determined. On basis data, an estimation this group will be given.