ChemInform Abstract: Crystal Structure, Magnetic, Electronic, and Thermal Transport Properties of Ternary Compounds REReB₄ (RE: Ce, Gd—Er, Yb).

Abstract

Crystal Structure, Magnetic, Electronic, and Thermal Transport Properties of Ternary Compounds REReB 4 (RE: Ce, Gd-Er, Yb). -LnReB4 with Ln: Tb-Er, Yb are synthesized from the elements by arc-melting and subsequent annealing at temperatures between 1073 and 1823 K for 12-700 h. CeReB 4 is prepared from mixtures of CeB 4 and rhenium powder by spark plasma sintering (1673 K, 5 h) followed by annealing at 1673 K for 2 d. The samples are characterized by powder XRD, magnetic and electronic transport measurements, and DFT calculations. The title compounds crystallize with the YCrB 4 structure type in the space group Pbam (Z = 4). The Tb, Ho, Er, and Yb containing compounds are Curie-Weiss paramagnets. LnReB 4 (Ln: Ce, Tb, Ho) are metallic materials with low thermopowers and relatively high thermal conductivities. -(ABRAMCHUK, M.; SCHNELLE, W.; VEREMCHUK, I.; LEITHE-JASPER, A.; GRIN, Y.; GUMENIUK*, R.; Eur. J. Inorg. Chem. 2016, 1, 161-168, http://dx.