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Literature DB >> 26998528

Structure of Periodic Crystals and Quasicrystals in Ultrathin Films of Ba-Ti-O.

Eric Cockayne¹, Marek Mihalkovič², Christopher L Henley³.

Abstract

We model the remarkable thin-film Ba-Ti-O structures formed by heat treatment of an initial perovskite BaTiO3 thin film on a Pt(111) surface. All structures contain a rumpled Ti-O network with all Ti threefold coordinated with O, and with Ba occupying the larger. mainly Ti7O7, pores. The quasicrystal structue is a simple decoration of three types of tiles: square, triangle and 30° rhombus, with edge lengths 6.85 Å, joined edge-to-edge in a quasicrystalline pattern; observed periodic crystals in ultrathin film Ba-Ti-O are built from these and other tiles. Simulated STM images reproduce the patterns seen experimentally, and identify the bright protrusions as Ba atoms. The models are consistent with all experimental observations.

Entities: Chemical Disease Gene Species

Year: 2016 PMID： 26998528 PMCID： PMC4795175 DOI： 10.1103/PhysRevB.93.020101

Source DB: PubMed Journal: Phys Rev B Impact factor: 4.036

12 in total

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Authors: Xiangbing Zeng; Goran Ungar; Yongsong Liu; Virgil Percec; Andrés E Dulcey; Jamie K Hobbs
Journal: Nature Date: 2004-03-11 Impact factor: 49.962

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Authors: John P Perdew; Adrienn Ruzsinszky; Gábor I Csonka; Oleg A Vydrov; Gustavo E Scuseria; Lucian A Constantin; Xiaolan Zhou; Kieron Burke
Journal: Phys Rev Lett Date: 2008-04-04 Impact factor: 9.161

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Journal: Phys Rev B Condens Matter Date: 1985-01-15

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Authors: J Kotakoski; A V Krasheninnikov; U Kaiser; J C Meyer
Journal: Phys Rev Lett Date: 2011-03-09 Impact factor: 9.161

5. Discovery of stable icosahedral quasicrystals: progress in understanding structure and properties.

Authors: An-Pang Tsai
Journal: Chem Soc Rev Date: 2013-06-21 Impact factor: 54.564

6. Direct imaging of a two-dimensional silica glass on graphene.

Authors: Pinshane Y Huang; Simon Kurasch; Anchal Srivastava; Viera Skakalova; Jani Kotakoski; Arkady V Krasheninnikov; Robert Hovden; Qingyun Mao; Jannik C Meyer; Jurgen Smet; David A Muller; Ute Kaiser
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7. Electronic and magnetic properties of Ti(2)O(3), Cr(2)O(3), and Fe(2)O(3) calculated by the screened exchange hybrid density functional.

Authors: Yuzheng Guo; Stewart J Clark; John Robertson
Journal: J Phys Condens Matter Date: 2012-07-18 Impact factor: 2.333

Structure of Periodic Crystals and Quasicrystals in Ultrathin Films of Ba-Ti-O.

1. Supramolecular dendritic liquid quasicrystals.

2. Restoring the density-gradient expansion for exchange in solids and surfaces.

3. Theory of the scanning tunneling microscope.

4. From point defects in graphene to two-dimensional amorphous carbon.

5. Discovery of stable icosahedral quasicrystals: progress in understanding structure and properties.

6. Direct imaging of a two-dimensional silica glass on graphene.

7. Electronic and magnetic properties of Ti(2)O(3), Cr(2)O(3), and Fe(2)O(3) calculated by the screened exchange hybrid density functional.

8. High-silica zeolite SSZ-61 with dumbbell-shaped extra-large-pore channels.

9. Quasicrystalline structure formation in a classical crystalline thin-film system.

10. Defects in bilayer silica and graphene: common trends in diverse hexagonal two-dimensional systems.

1. A four-dimensional model for the Ba-Ti-O dodecagonal quasicrystal.