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Wolfgang Donner
Assistant Professor

Honors and Awards
Feodor Lynen Fellow
Alexander von Humboldt Foundation 2000

Research Emphasis
Diffraction from Thin Films

Materials Research Interests Materials Publications

Phase Transitions
The influence of confinement and interfacial boundary conditions on phase transitions in thin films. Depth-dependence of order parameters. Metastable epitaxial phases.

Defects
Point and line defects in epitaxial thin films, their strain fields. Interplay between epitaxial strain and defect ordering. Diffuse scattering from defects in thin films.

Critical adsorption and dimensional crossover in epitaxial FeCo films, Physical Review Letters 2000 85(1) 134-137.

Temperature-dependent interfacial stiffness of the disorder layer in a thin Cu3Au alloy film, Physical Review Letters 2000 85(9) 1926-1929.

Strain profiles in epitaxial films from x-ray Bragg diffraction phases, Applied Physics Letters, 2000 77(24) 3929-3931

X-ray scattering from misfit dislocations in heteroepitaxial films, Applied Physics Letters 2001 78 443-445

Crossover between strong- and weak-field critical adsorption and the determination of the universal exponent eta_perp, Journal of Chemical Physics, 2002, 117(2) 1-5.