Revisiting magnetic properties of γ- Fe₂WO₆

Heda Zhang¹, Gordon Peiker², Mengze Zhu¹, Brian Phelan¹, Clarina dela Cruz³, Xianglin Ke¹ (1. Physics and astronomy, Michigan State University; 2. Skyline high school; 3. Neutron scattering division, Oak Ridge National Lab)
Fe₂WO₆ is a p-type semiconductor with a large band gap (1.68 eV), serving as a promising photoelectrode material for water oxidation. Furthermore, this material also exhibits interesting magnetic properties depending on the crystalline phase. In this talk, we revisit the magnetic properties of gamma phase Fe₂WO₆ via magnetic susceptibility, heat capacity and neutron diffraction measurements. Comparing to an earlier study, we found some inconsistencies regarding the magnetic pattern and the temperature dependence of the magnetic ordering vector . Detailed discussions will be presented.