D.E. Eastman
Journal of Applied Physics
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.
D.E. Eastman
Journal of Applied Physics
J. Freeouf, M. Erbudak, et al.
Solid State Communications
P.O. Nilsson, D.E. Eastman
Physica Scripta
D.E. Eastman
Physics Letters A