Stability of {111}Pd/{0002}ZnO polar interface formed by internal oxidation of Pd-Zn alloys
Kei Watanabe1, Yuji Kunisada1, Norihito Sakaguchi2
1Center for Advanced Research of Energy and Materials, Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan.
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.
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