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Quasicrystals and their Approximants in 2D Ternary Oxides


Förster, Stefan; Schenk, Sebastian; Maria Zollner, Eva; et al; Greber, Thomas (2020). Quasicrystals and their Approximants in 2D Ternary Oxides. Physica Status Solidi, 257(7):1900624.

Abstract

2D oxide quasicrystals (OQCs) are recently discovered aperiodic, but well‐ordered oxide interfaces. In this topical review, an introduction to these new thin‐film systems is given. The concept of quasicrystals and their approximants is explained for BaTiO3‐ and SrTiO3‐derived OQCs and related periodic structures in these 2D oxides. In situ microscopy unravels the high‐temperature formation process of OQCs on Pt(111). The dodecagonal structure is discussed regarding tiling statistics and tiling decoration based on the results of atomically resolved scanning tunneling microscopy and various diffraction techniques. In addition, angle‐resolved ultraviolet photoemission spectroscopy and X‐ray photoelectron spectroscopy results prove a metallic character of the 2D oxide.

Abstract

2D oxide quasicrystals (OQCs) are recently discovered aperiodic, but well‐ordered oxide interfaces. In this topical review, an introduction to these new thin‐film systems is given. The concept of quasicrystals and their approximants is explained for BaTiO3‐ and SrTiO3‐derived OQCs and related periodic structures in these 2D oxides. In situ microscopy unravels the high‐temperature formation process of OQCs on Pt(111). The dodecagonal structure is discussed regarding tiling statistics and tiling decoration based on the results of atomically resolved scanning tunneling microscopy and various diffraction techniques. In addition, angle‐resolved ultraviolet photoemission spectroscopy and X‐ray photoelectron spectroscopy results prove a metallic character of the 2D oxide.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Electronic, Optical and Magnetic Materials
Physical Sciences > Condensed Matter Physics
Uncontrolled Keywords:Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Language:English
Date:1 July 2020
Deposited On:09 Jan 2020 10:51
Last Modified:29 Jul 2020 12:24
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0031-8957
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1002/pssb.201900624

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