Stabilization of the perovskite phase in the Y-Bi-O system by using a BaBiO3 buffer Layer

Rosa Luca Bouwmeester (Corresponding Author), C.A.J. de Hond, Nicolas Gauquelin, Jo Verbeeck, G. Koster, Alexander Brinkman

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Abstract

A topological insulating phase has theoretically been predicted for the thermodynamically unstable perovskite phase of YBiO3. Here, it is shown that the crystal structure of the Y–Bi–O system can be controlled by using a BaBiO3 buffer layer. The BaBiO3 film overcomes the large lattice mismatch of 12% with the SrTiO3 substrate by forming a rocksalt structure in between the two perovskite structures. Depositing an YBiO3 film directly on a SrTiO3 substrate gives a fluorite structure. However, when the Y–Bi–O system is deposited on top of the buffer layer with the correct crystal phase and comparable lattice constant, a single oriented perovskite structure with the expected lattice constants is observed.
Original languageEnglish
Article number1800679
Number of pages8
JournalPhysica status solidi. Rapid research letters
Volume13
Issue number7
Early online date6 Mar 2019
DOIs
Publication statusPublished - 1 Jul 2019

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Buffer layers
Perovskite
Stabilization
buffers
stabilization
Lattice constants
Lattice mismatch
Fluorspar
fluorite
Substrates
Crystal structure
Crystals
crystal structure
crystals
perovskite
strontium titanium oxide

Keywords

  • UT-Hybrid-D
  • Perovskite oxide
  • Pulsed Laser Deposition (PLD)
  • Transmission Electron Microscopy (TEM)
  • topological insulators
  • Buffer layers

Cite this

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title = "Stabilization of the perovskite phase in the Y-Bi-O system by using a BaBiO3 buffer Layer",
abstract = "A topological insulating phase has theoretically been predicted for the thermodynamically unstable perovskite phase of YBiO3. Here, it is shown that the crystal structure of the Y–Bi–O system can be controlled by using a BaBiO3 buffer layer. The BaBiO3 film overcomes the large lattice mismatch of 12{\%} with the SrTiO3 substrate by forming a rocksalt structure in between the two perovskite structures. Depositing an YBiO3 film directly on a SrTiO3 substrate gives a fluorite structure. However, when the Y–Bi–O system is deposited on top of the buffer layer with the correct crystal phase and comparable lattice constant, a single oriented perovskite structure with the expected lattice constants is observed.",
keywords = "UT-Hybrid-D, Perovskite oxide, Pulsed Laser Deposition (PLD), Transmission Electron Microscopy (TEM), topological insulators, Buffer layers",
author = "Bouwmeester, {Rosa Luca} and {de Hond}, C.A.J. and Nicolas Gauquelin and Jo Verbeeck and G. Koster and Alexander Brinkman",
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doi = "10.1002/pssr.201800679",
language = "English",
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journal = "Physica status solidi. Rapid research letters",
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Stabilization of the perovskite phase in the Y-Bi-O system by using a BaBiO3 buffer Layer. / Bouwmeester, Rosa Luca (Corresponding Author); de Hond, C.A.J.; Gauquelin, Nicolas; Verbeeck, Jo; Koster, G.; Brinkman, Alexander .

In: Physica status solidi. Rapid research letters, Vol. 13, No. 7, 1800679, 01.07.2019.

Research output: Contribution to journalLetterAcademicpeer-review

TY - JOUR

T1 - Stabilization of the perovskite phase in the Y-Bi-O system by using a BaBiO3 buffer Layer

AU - Bouwmeester, Rosa Luca

AU - de Hond, C.A.J.

AU - Gauquelin, Nicolas

AU - Verbeeck, Jo

AU - Koster, G.

AU - Brinkman, Alexander

N1 - Wiley deal

PY - 2019/7/1

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N2 - A topological insulating phase has theoretically been predicted for the thermodynamically unstable perovskite phase of YBiO3. Here, it is shown that the crystal structure of the Y–Bi–O system can be controlled by using a BaBiO3 buffer layer. The BaBiO3 film overcomes the large lattice mismatch of 12% with the SrTiO3 substrate by forming a rocksalt structure in between the two perovskite structures. Depositing an YBiO3 film directly on a SrTiO3 substrate gives a fluorite structure. However, when the Y–Bi–O system is deposited on top of the buffer layer with the correct crystal phase and comparable lattice constant, a single oriented perovskite structure with the expected lattice constants is observed.

AB - A topological insulating phase has theoretically been predicted for the thermodynamically unstable perovskite phase of YBiO3. Here, it is shown that the crystal structure of the Y–Bi–O system can be controlled by using a BaBiO3 buffer layer. The BaBiO3 film overcomes the large lattice mismatch of 12% with the SrTiO3 substrate by forming a rocksalt structure in between the two perovskite structures. Depositing an YBiO3 film directly on a SrTiO3 substrate gives a fluorite structure. However, when the Y–Bi–O system is deposited on top of the buffer layer with the correct crystal phase and comparable lattice constant, a single oriented perovskite structure with the expected lattice constants is observed.

KW - UT-Hybrid-D

KW - Perovskite oxide

KW - Pulsed Laser Deposition (PLD)

KW - Transmission Electron Microscopy (TEM)

KW - topological insulators

KW - Buffer layers

U2 - 10.1002/pssr.201800679

DO - 10.1002/pssr.201800679

M3 - Letter

VL - 13

JO - Physica status solidi. Rapid research letters

JF - Physica status solidi. Rapid research letters

SN - 1862-6254

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M1 - 1800679

ER -