Superconducting Properties of Rhenium, Ruthenium, and Osmium

摘要: Magnetic measurements have been made on the superconducting properties of rhenium, ruthenium, and osmium, influence various methods specimen preparation treatment has studied. In particular transition temperature rhenium could be raised by about 1\ifmmode^\circ\else\textdegree\fi{}K above ideal value, 1.699\ifmmode^\circ\else\textdegree\fi{}K, grinding or preparing as a powder. Although belongs to elements, specimens behavior also readily prepared. This reinforces conclusion previous workers that nonideal frequently found in metal is not fundamental property this group but consequence metallurgical history specimens.