JSAP Review
Online ISSN : 2437-0061
Perspective
Surface and interface properties of quasi-two-dimensional metallic oxides
Takayuki Harada
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JOURNAL OPEN ACCESS

2022 Volume 2022 Article ID: 220303

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Abstract

Metallic delafossites ABO2 (PdCoO2, PdCrO2, PdRhO2, and PtCoO2) are among the most conductive metals, with electrical conductivity comparable to that of elemental Au. This remarkable conductivity resides in a quasi-two-dimensional layered crystal structure consisting of alternating A+ and [BO2] layers. In this article, I introduce our recent research on thin-film growth of metallic delafossites. I also briefly overview the physical properties of metallic delafossites, with a focus on the surface/interface phenomena originating from their polar layered crystal structure.

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