Chemical Bonding in Zr–Ni and Zr–Ni–D Alloy Glasses Observed by Soft X-Ray Spectroscopy

Abstract

Electronic states in Zr–Ni and Zr–Ni–D alloy glasses are studied over wide ranges of nickel and deuterium concentrations by measuring Zr Lβ_2,15 and Ni Lα_1,2 emission bands. Zirconium Lβ_2,15 is modified deep in the band while Ni Lα_1,2 undergoes a minor change near the Fermi edge. These spectra suggest that chemical bonding among constituent atoms affects the band structures of the glasses significantly. A sign of preference for Zr–D bonding to Ni–D bonding is observed and its effect on the band structure is discussed.