Room temperature ferromagnetic nanoparticles of Gd5Si4

Gd5(SixGe1-x)4 compounds undergo first order phase transitions close to room temperature when x @ 0.5, which are accompanied by extreme changes of properties. We report the fabrication of nanoparticles of one of the parent compounds - Gd5Si4 - using high energy ball milling. Crystal structure, microstructure and magnetic properties have been investigated… (More)