High-resolution angle-resolved photoemission study of the Ag band structure alongΛ
- 15 September 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (6) , 3465-3471
- https://doi.org/10.1103/physrevb.32.3465
Abstract
High-resolution angle-resolved photoelectron spectra have been obtained from the (111) face of an Ag crystal for normal electron emission. These spectra made it possible to determine experimentally the valence-band structure of Ag along the high-symmetry line Λ with better accuracy than previously [P. S. Wehner et al., Phys. Rev. B 19, 6164 (1979)], and also revealed a second flat band near point Γ in the conduction bands 23 eV above the Fermi level. The new binding energies at points Γ and L were used along with the data of other workers to construct an experimental band structure of Ag with the mixed-basis interpolation scheme of Smith [Phys. Rev. B 9, 1365 (1974)]. The augmented-plane-wave calculations of Eckhardt, Fritsche, and Noffke [J. Phys. F 14, 97 (1984)] agree very well with the experimentally determined bands.Keywords
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