D.E. Eastman, F.J. Himpsel, et al.
Journal of Magnetism and Magnetic Materials
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, F.J. Himpsel, et al.
Journal of Magnetism and Magnetic Materials
D.E. Eastman, W.D. Grobman, et al.
Physical Review B
F.J. Himpsel, D.E. Eastman, et al.
Physical Review B
J.F. Van Der Veen, F.J. Himpsel, et al.
Physical Review Letters