‘‘γ-α’’ phase transition of monolayer Ce on W(110)
- 16 September 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (12) , 1622-1625
- https://doi.org/10.1103/physrevlett.67.1622
Abstract
As Ce is adsorbed on a W(110) substrate at 300 K an epitaxial layer develops at a coverage of 0.5 monolayer. LEED patterns indicate a hexagonal pattern consistent with Ce(111). As Ce is added, the lattice parameter shrinks continuously from 9% larger than that for γ-Ce to 3% smaller than that for α-Ce. 4f photoelectron spectra reveal two peaks similar to those of γ-Ce, changing relative intensity with increasing coverage to resemble those of α-Ce.Keywords
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