title: Compositional correlation and anticorrelation in quaternary alloys: competition between bulk thermodynamics and surface kinetics.
abstract: We analyze the atomistic mechanisms driving the compositional correlation of In and N in the quaternary Inx Ga1-xAs1-yNy alloys combining atomic scale chemical analysis in transmission electron microscopy and density-functional theory calculations. Our results show that for typical growth conditions surface kinetics prevail over bulk thermodynamics resulting in a hitherto unexpected compositional anticorrelation between In and N.
authors.affiliation: Institut für Kristallzüchtung, Max-Born-Strasse 2, 12489 Berlin, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Albrecht
authors.forename: H
authors.initials: H
authors.lastname: Abu-Farsakh
authors.forename: T
authors.initials: T
authors.lastname: Remmele
authors.forename: L
authors.initials: L
authors.lastname: Geelhaar
authors.forename: H
authors.initials: H
authors.lastname: Riechert
authors.forename: J
authors.initials: J
authors.lastname: Neugebauer