Physical realization of two-dimensional Ising critical phenomena: Oxygen chemisorbed on the W(112) surface
- 1 May 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 31 (9), 5918-5922
- https://doi.org/10.1103/physrevb.31.5918
Abstract
The continuous reversible order-disorder phase transition of oxygen chemisorbed on the W(112) surface at half-monolayer coverage was studied by low-energy electron diffraction (LEED). The critical phenomena associated with this phase transition are shown to belong to the two-dimensional Ising universality class. An attempt has been made to extract the critical exponents, and the limitations of the LEED system presently used are discussed.Keywords
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