Abstract

Abstract Calcium (Ca)-substituted polycrystalline Yb 2-x Ca x Fe 3 Si 5 was prepared using a multi-anvil high-pressure and high-temperature synthesis method. Magnetization and electrical conductivity measurements revealed the suppression of antiferromagnetic behaviour by doping Ca to the ytterbium (Yb) site. Increasing the doping amount of Ca to Yb 2-x Ca x Fe 3 Si 5 gradually changed the metallic behaviour to a semiconductor-like behaviour.

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