On Directly Measuring Relative Fermi Energies Of Noble Metals And Their Alloys

We present the first evidence of direct measurement of relative Fermi energies in alloys and between pure metals. From applying the "atomic" concept of core hole final state screening, the Auger energy shift of noble metal A equals EF A-EF(x). High resolution Auger shifts in P1-x tCux,AuxCu1-x and AuxAg1-x demonstrate experimental verification of this simple relation. We find EF CuEF Au ≅ - 0.2 eV, and EF Pt ≅ EF Cu and EF Ag ≅ EF Au. © 1981.391111711174Ehrenreich, Schwartz, (1976) Solid State Physics, 31, p. 150Sellmyer, (1978) Solid State Physics, 33, p. 83Lang, Kohn, (1971) Phys. Rev., 3 B, p. 1215Lang, (1973) Solid State Physics, 28, p. 225Eastman, (1970) Phys. Rev., 2 B, p. 1Rivière, (1969) Solid State Surface Science, 1. , M. Green, Dekker, New YorkGelatt, Ehrenreich, (1974) Phys. Rev., 10 B, p. 398Watson, Hudis, Perlman, (1971) Phys. Rev., 4 B, p. 4139Lang, Williams, (1977) Phys. Rev., 16 B, p. 2408Williams, Lang, (1978) Phys. Rev. Lett., 40, p. 954Lang, Williams, (1979) Phys. Rev., 20 B, p. 1369Martensson, Johansson, Valence-Band and Core-Level Satellites in Nickel and Related Elements (1980) Physical Review Letters, 45, p. 482Johansson, Martensson, (1980) Phys. Rev., 21 B, p. 4427Martensson, Nyholm, Johansson, (1980) Phys. Rev. Lett., 45, p. 745Kleiman, Sundaram, Rogers, Summary Abstract: Auger shifts and characterization of electronic structure of alloys containing noble metals (1981) Journal of Vacuum Science and Technology, 18, p. XXXXKowalczyk, Pollak, McFeely, Ley, Shirley, (1973) Phys. Rev., 8 B, p. 2387Powell, Mandl, (1972) Phys. Rev. Lett., 29, p. 1153Yin, Tsang, Adler, Yellin, (1972) J. Appl. Phys., 43, p. 3464Weightman, Roberts, Johnson, (1975) J. Phys., 8 C, p. 550Roberts, Weightman, Johnson, (1975) J. Phys., 8 C, p. 1301Antonides, Janse, Sawatsky, (1977) Phys. Rev., 15 B, p. 1669Heine, (1967) Phys. Rev., 153, p. 673Hubbard, (1967) J. Proc. Phys. Soc., 92, p. 921V.S. Sundaram, J.D. Rogers and R. Landers (J. Vac. Sci. Tech., in press)Powell, (1973) Phys. Rev. Lett., 30, p. 1179Kleiman, Sundaram, Barreto, Rogers, (1979) Sol. St. Commun., 32, p. 919Kleiman, Sundaram, Rogers, de Moraes, (1981) Phys. Rev., 23 B, p. 3177Sundaram, Rogers, de Moraes, Kleiman, X-ray photoemission lineshapes and energies in PdxCu1-x (1981) Journal of Physics F: Metal Physics, 11, p. XXXXKleiman, (1981) Proceedings of the Second International Conference of Solid Films and Surfaces, , College Park, Maryland(1980) First Latin American Symposium on Surface Physics, , Niteroi, Brasi