R.F. Davis
University of California, Berkeley
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Featured researches published by R.F. Davis.
Chemical Physics Letters | 1980
R.F. Davis; S. D. Kevan; B. C. Lu; J.G. Tobin; D. A. Shirley
Large directional asymmetries were observed in photoelectron distributions from core and valence levels in metals and adsorbate atoms. Intensities varied by factors up to 25 as the angle between A and p was varied. The energy dependence of asymmetry showed atomic behavior similar to that expected for free atoms, modified for the tendency p∥A.
Chemical Physics Letters | 1978
P.S. Wehner; S. D. Kevan; R.S. Williams; R.F. Davis; D. A. Shirley
Abstract Photoelectron spectra for CO on a Pd substrate have been measured in the photon energy range 40–180 eV. A dramatic resonance in the intensity ratio of the CO-derived peaks compared to the Pd valence band (VB) was found for photon energies near 130 eV, where the ratio is ca. nine times larger than at hv = 40 eV. This increased spectral sensitivity to the CO molecular orbitals results from a Cooper minimum in the photoemission cross section of the Pd 4d valence level. Because such spectral minima are present in all 4d and 5d VB materials, adsorbate studies on these substrates at photon energies near 130 eV (for which laboratory sources are potentially available) should benefit greatly from the decreased background and the increased surface sensitivity. This point is further illustrated by comparing the present results to previously reported photoemission data from CO on Ni and Pt substrates.
Physical Review Letters | 1981
S. D. Kevan; R.F. Davis; D.H. Rosenblatt; J. G. Tobin; M.G. Mason; D. A. Shirley; C.H. Li; S. Y. Tong
Physical Review B | 1980
K.A. Mills; R.F. Davis; S. D. Kevan; G. Thornton; D. A. Shirley
Physical Review B | 1982
D.H. Rosenblatt; S. D. Kevan; J. G. Tobin; R.F. Davis; M.G. Mason; D.R. Denley; D. A. Shirley; Y. Huang; S. Y. Tong
Physical Review Letters | 1978
R.S. Williams; P.S. Wehner; S. D. Kevan; R.F. Davis; D. A. Shirley
Physical Review B | 1982
D.H. Rosenblatt; S. D. Kevan; J. G. Tobin; R.F. Davis; M.G. Mason; D. A. Shirley; J.C. Tang; S. Y. Tong
Physical Review B | 1985
R.F. Davis; R.S. Williams; S. D. Kevan; P.S. Wehner; D. A. Shirley
Physical Review B | 1981
S. D. Kevan; J. G. Tobin; D.H. Rosenblatt; R.F. Davis; D. A. Shirley
Physical Review Letters | 1980
R.F. Davis; S. D. Kevan; D.H. Rosenblatt; M.G. Mason; J. G. Tobin; D. A. Shirley