R. Merlin, G. Güntherodt, et al.
Physical Review B
We have determined the interconfiguration mixing ratios (Sm+3/Sm+2) of 1.4 and 4.1 for Sm0.81Y0.19S and SmAs0.18S0.82 at 295 K from their x-ray photoemission spectra. These ratios are observed to decrease reversibly by a factor of 2 at 110 K. The agreement of these results with valences deduced from lattice-constant measurements is direct evidence that configuration mixing is responsible for the anomalous temperature- and composition-dependence of the lattice constant. © 1974 The American Physical Society.
R. Merlin, G. Güntherodt, et al.
Physical Review B
R.A. Pollak, C.C. Tsuei, et al.
Solid State Communications
J. Freeouf
Surface Science
D.S. Reed, N.C. Yeh, et al.
Physical Review B