title: Strain relief through heterophase interface reconstruction: Ag(111)/Ru(0001).
abstract: We report an experimental (scanning tunneling microscopy) and theoretical (embedded atom method) study of a heterophase interface reconstruction between Ag(111) and Ru(0001). Despite the large 7% mismatch, the second layer of Ag from the Ru exhibits a hexagonal structure with Ag bulk spacing, providing a close match to bulk Ag. The first layer of Ag (next to Ru) is reconstructed in a highly symmetrical and regular structure containing monolayer long threading dislocations. We argue that this structure may generally occur to relieve strain in a certain class of heterophase interfaces.
authors.affiliation: Sandia National Laboratories, Livermore, California 94550, USA.
authors.forename: W L
authors.initials: WL
authors.lastname: Ling
authors.forename: J
authors.initials: J
authors.lastname: de la Figuera
authors.forename: N C
authors.initials: NC
authors.lastname: Bartelt
authors.forename: R Q
authors.initials: RQ
authors.lastname: Hwang
authors.forename: A K
authors.initials: AK
authors.lastname: Schmid
authors.forename: G E
authors.initials: GE
authors.lastname: Thayer
authors.forename: J C
authors.initials: JC
authors.lastname: Hamilton