Physical realization of two-dimensional Ising critical phenomena: Oxygen chemisorbed on the W(112) surface

Journal Article · Wed May 01 00:00:00 EDT 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.5918· OSTI ID:5701937

Wang, G; Lu, T

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.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• OSTI ID: 5701937
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 31:9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
OXYGEN
CHEMISORPTION
ORDER-DISORDER TRANSFORMATIONS
TUNGSTEN
SORPTIVE PROPERTIES
AUGER ELECTRON SPECTROSCOPY
CRYSTAL FACES
DESORPTION
ELECTRON DIFFRACTION
ISING MODEL
QUANTITY RATIO
CHEMICAL REACTIONS
COHERENT SCATTERING
CRYSTAL MODELS
DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
MATHEMATICAL MODELS
METALS
NONMETALS
PHASE TRANSFORMATIONS
SCATTERING
SEPARATION PROCESSES
SORPTION
SPECTROSCOPY
SURFACE PROPERTIES
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties