Nucleation process in Cu{sub 3}Au(001) surface region around the order-disorder phase transition

Journal Article · Tue Dec 21 00:00:00 EST 2010 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.3520147· OSTI ID:21559966

Zasada, I; Rychtelska, T ^[1]; Rok, L; Mroz, S ^[2]

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1. Department of Solid State Physics, University of Lodz, ul. Pomorska 149/153, PL 90-236 Lodz (Poland)
2. Institute of Experimental Physics, University of Wroclaw, pl. Maxa Borna 9, PL 50-204 Wroclaw (Poland)

The element distribution in the Cu{sub 3}Au(001) surface region has been determined on the basis of directional Auger electron spectroscopy polar profiles measurements and interpreted in the frame of thermodynamic approach formulated for the inhomogeneous systems by using the Neel sublattices concept. Both approaches, experimental and theoretical, allowed us to present the temperature dependence of element concentration in a layer resolved mode. The wide temperature range explored in the experiment ensured the large data base for the theoretical analysis which enabled us to propose the distribution of intra-layer and inter-layer pairwise interactions leading to proper temperature dependence of segregation profiles in the surface region. This kind of interaction distribution can be understood as strain induced.

• OSTI ID: 21559966
• Journal Information: Journal of Chemical Physics, Vol. 133, Issue 23; Other Information: DOI: 10.1063/1.3520147; (c) 2010 American Institute of Physics; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AUGER ELECTRON SPECTROSCOPY
COPPER ALLOYS
DISTRIBUTION
GOLD ALLOYS
INTERACTIONS
LAYERS
NUCLEATION
ORDER-DISORDER TRANSFORMATIONS
SEGREGATION
SURFACES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
THERMODYNAMIC PROPERTIES
ALLOYS
ELECTRON SPECTROSCOPY
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
SPECTROSCOPY
TRANSITION ELEMENT ALLOYS