D. Heskett, D. Tang, et al.
Applied Surface Science
A Comment on the Letter by Ortega and Flores, Phys. Rev. Lett. 63, 2500 (1989). © 1990 The American Physical Society.
D. Heskett, D. Tang, et al.
Applied Surface Science
A.B. McLean
Journal of Physics Condensed Matter
F.J. Himpsel, G.V. Chandrashekhar, et al.
Physical Review B
L.J. Terminello, A.B. McLean, et al.
Review of Scientific Instruments