INTERPLAY BETWEEN STRUCTURAL CHEMISTRY AND VALENCE FLUCTUATIONS IN CERU6B4, CERH6B4, CEIR6B4

[[abstract]]Powder X-ray diffraction, low temperature electrical resistivity and magnetic susceptibility measurements have been made on new ternary cerium transition metal borides CeT6B4 (≡ Ce0.5T3B2) with the La1-xRh3B2-type structure, where T can be Ru, Rh or Ir. No isostructural compounds were found for T = Fe, Co, Ni, Os, Pd or Pt. Structural effect (disorder/vacancy) on valence fluctuations in these cerium compounds is discussed. These results, together with other results from ternary rare earth rhodium compounds RE0.5Rh3B2 (RE = La to Lu, Y, Th), show interesting interplay among structural chemistry, valence fluctuations and long range magnetic order[[fileno]]2010141010003[[department]]物理