Band calculations of the GPA high-pressure effects on the heavy lanthanide metals

Abstract Jackson's group and Mito's group have performed the systematic studies for the GPa high-pressure effects on the magnetic properties of the heavy lanthanide elements. They found that the Curie temperatures decrease linearly with increasing pressure and the magnetic signals disappear at around 9.0 GPa for Gd, 7.5 GPa for Tb, 7.4 GPa for Dy and 11.0 GPa for Ho. With the Anderson's point of view, the results of our band calculation conclude that some part of the decreasing of the bulk magnetization of Gd by pressure is caused by the narrowing of the bandwidth of itinerant s, d hybridized conduction electrons and the broadening of the bandwidth of localized f-orbital electrons.