On the effect of isovalent Bi substitution at the Eu site in the pyrochlore Eu2Ir2O7

• DOI: 10.1063/1.5029034
• Publication Date: 2018-04-11T00:31:29Z
• Authors: Prachi Telang; Kshiti Mishra; Surjeet Singh
• Keywords: Physical property; Lattice (music); Lattice constant

We investigate the structural and physical properties of pyrochlores Eu2-xBi2xIr2O7 (x = 0, 0.05, 0.1, 0.25, 0.5, 0.75 1). found that lattice parameters compositions close to Eu2Ir2O7 end (i.e., x < 0.1) do not follow a regular increase as expected due bigger ionic size Bi3+ compared Eu3+. Measurement properties, including, resistivity magnetic susceptibility showed strong structure-property correlation in 0.1 doping range. Above this level, show linear increase, behavior series quickly approaches member Bi2Ir2O7 which exhibits metallic conductivity with no transition.