title: Absence of 2kF splitting in the diffuse scattering from Cu3Au at the (001) surface.
abstract: We report a new type of short-range order correlations at the (001) surface of Cu3Au which no longer produces the 2k(F)-splitting characteristic for the bulk short-range order scattering. We present the temperature dependence of this phenomenon and a theoretical interpretation of its origin. We argue that this new surface effect is caused by a drastic change of the strain-induced interactions at the surface.
authors.affiliation: Max-Planck-Institut für Metallforschung, Heisenbergstrasse 3, D-70569 Stuttgart, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Reichert
authors.forename: O
authors.initials: O
authors.lastname: Klein
authors.forename: V
authors.initials: V
authors.lastname: Bugaev
authors.forename: O
authors.initials: O
authors.lastname: Shchyglo
authors.forename: A
authors.initials: A
authors.lastname: Udyanskyy
authors.forename: H
authors.initials: H
authors.lastname: Dosch
authors.forename: K F
authors.initials: KF
authors.lastname: Peters