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Soft X‐Ray Absorption in CuNi Alloys
Author(s) -
Gudat W.,
Kunz C.
Publication year - 1972
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220520212
Subject(s) - alloy , photoelectric effect , spectral line , absorption (acoustics) , photon energy , materials science , absorption spectroscopy , superposition principle , metal , electron , range (aeronautics) , atomic physics , x ray , stoichiometry , molecular physics , photon , condensed matter physics , chemistry , physics , optics , metallurgy , quantum mechanics , optoelectronics , composite material
Abstract CuNi alloy films have been investigated in the vicinity of the onset of 3p electron absorption in the photon energy range 50 to 90 eV. The spectra obtained can be described as a stoichiometric superposition of the individual Cu and Ni metal spectra. Any rearrangement of the states due to an alloy interaction is of no great influence. This result is in general agreement with results on soft X‐ray emission, uv and X‐ray photoelectric emission. It is in contradiction to the rigid band model and supports more recent alloy theories such as the coherent‐potential approximation. This result, moreover, supports the interpretation of the wide structures in the transition metal spectra as a predominantly atomic effect.