title: Stability of {111}Pd/{0002}ZnO polar interface formed by internal oxidation of Pd-Zn alloys.
abstract: We investigated the stability of Pd/ZnO polar interfaces formed by internal oxidation of Pd-Zn alloys by using high-resolution transmission electron microscopy, electron energy-loss spectroscopy and convergent-beam electron diffraction. At 1273 K, a [Formula: see text] polar interface defaceted and transformed into a curved interface, while another (111)Pd/(0002)ZnO polar interface retained its flatness. The [Formula: see text] polar interface lost some stability over non-polar interfaces at 1273 K, while the (111)Pd/(0002)ZnO polar interface remained stable.
authors.affiliation: Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.
authors.forename: Kei
authors.initials: K
authors.lastname: Watanabe
authors.affiliation: Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Kunisada
authors.affiliation: Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan sakaguchi@eng.hokudai.ac.jp.
authors.forename: Norihito
authors.initials: N
authors.lastname: Sakaguchi
keywords: convergent-beam electron diffraction; interfacial structure; internal oxidation; polar interface