T. Gustafsson, E.W. Plummer, et al.
Physical Review A
The energy gap between the lowest two valence bands for several binary compounds has been determined from photoemission distributions and is found to be a good measure of the ionicity parameter C of the Philips-Van Vechten theory. © 1973.
T. Gustafsson, E.W. Plummer, et al.
Physical Review A
D.E. Eastman, F.J. Himpsel, et al.
Physical Review Letters
M. Iwan, F.J. Himpsel, et al.
Physical Review Letters
F.J. Himpsel, D.E. Eastman, et al.
Physical Review Letters