Magnetic Susceptibilities of Non-Ferromagnetic Transition Metals

Abstract

The increases of the magnetic susceptibilities with temperature for non-ferromagnetic transition metals are investigated by making use of the band picture. If the Fermi surface at the absolute zero of temperature is in the neighbourhood of a minimum of the electron state density, the susceptibility increases with temperature at lower temperatures. Instead of the band with a minimum of the electron state density we use the band where two standard bands are superposed. The spin paramagnetic susceptibilities of this band are calculated numerically at arbitrary temperatures in the several cases of the position of the Fermi surface and the shape of the band, and it is shown that the susceptibilities increase with temperature at higher temperatures. By comparing our theoretical results with the experimental results for the susceptibilities of pure chromium and dilute alloys of iron in chromium at higher temperatures, the position and the shape of the Fermi surface in the neighbourhood of the minimum of the state density for chromium are discussed.