Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films
We report on the transport properties of epitaxial vanadium sesquioxide (V2O3) thin films with thicknesses in the range of 1 to 120 nm. Films with thickness down to nanometer values reveal clear resistivity curves with temperature illustrating that even at these thicknesses the films are above the p...
Published in: | Applied Physics Letters |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AIP Publishing
2021
|
Subjects: | |
Online Access: | https://hdl.handle.net/20.500.11815/2561 https://doi.org/10.1063/5.0043941 |
id |
ftopinvisindi:oai:opinvisindi.is:20.500.11815/2561 |
---|---|
record_format |
openpolar |
spelling |
ftopinvisindi:oai:opinvisindi.is:20.500.11815/2561 2023-05-15T16:47:22+02:00 Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films Hajihoseini, Hamidreza Thorsteinsson, Einar B. Sigurjonsdottir, Vilborg V. Arnalds, Unnar B. Raunvísindastofnun (HÍ) Science Institute (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland 2021-04-19 161602 https://hdl.handle.net/20.500.11815/2561 https://doi.org/10.1063/5.0043941 en eng AIP Publishing Applied Physics Letters;118(16) https://aip.scitation.org/doi/pdf/10.1063/5.0043941 Hajihoseini, H., Thorsteinsson, E. B., Sigurjonsdottir, V. V., & Arnalds, U. B. (2021). Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films. 118(16), 161602. doi:10.1063/5.0043941 0003-6951 1077-3118 https://hdl.handle.net/20.500.11815/2561 Applied Physics Letters doi:10.1063/5.0043941 info:eu-repo/semantics/openAccess Eðlisfræði info:eu-repo/semantics/article 2021 ftopinvisindi https://doi.org/20.500.11815/2561 https://doi.org/10.1063/5.0043941 2022-11-18T06:52:11Z We report on the transport properties of epitaxial vanadium sesquioxide (V2O3) thin films with thicknesses in the range of 1 to 120 nm. Films with thickness down to nanometer values reveal clear resistivity curves with temperature illustrating that even at these thicknesses the films are above the percolation threshold and continuous over large distances. The results reveal that with reducing thickness the resistivity of the films increases sharply for thicknesses below 4 nm and the metal-insulator transition (MIT) is quenched. We attribute this increase to a strained interface layer of thickness ∼ 4 nm with in-plane lattice parameters corresponding to the Al2O3 substrate. The interface layer displays a suppressed MIT shifted to higher temperatures and has a room temperature resistivity 6 orders of magnitude higher than the thicker V2O3 films. This work was supported by the University of Iceland Research Fund for Doctoral Students, the University of Iceland Research Fund, the Icelandic Student Innovation Fund, and the Icelandic Research Fund (Grant Nos. 207111 and 174271). Article in Journal/Newspaper Iceland Opin vísindi (Iceland) Applied Physics Letters 118 16 161602 |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Eðlisfræði |
spellingShingle |
Eðlisfræði Hajihoseini, Hamidreza Thorsteinsson, Einar B. Sigurjonsdottir, Vilborg V. Arnalds, Unnar B. Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films |
topic_facet |
Eðlisfræði |
description |
We report on the transport properties of epitaxial vanadium sesquioxide (V2O3) thin films with thicknesses in the range of 1 to 120 nm. Films with thickness down to nanometer values reveal clear resistivity curves with temperature illustrating that even at these thicknesses the films are above the percolation threshold and continuous over large distances. The results reveal that with reducing thickness the resistivity of the films increases sharply for thicknesses below 4 nm and the metal-insulator transition (MIT) is quenched. We attribute this increase to a strained interface layer of thickness ∼ 4 nm with in-plane lattice parameters corresponding to the Al2O3 substrate. The interface layer displays a suppressed MIT shifted to higher temperatures and has a room temperature resistivity 6 orders of magnitude higher than the thicker V2O3 films. This work was supported by the University of Iceland Research Fund for Doctoral Students, the University of Iceland Research Fund, the Icelandic Student Innovation Fund, and the Icelandic Research Fund (Grant Nos. 207111 and 174271). |
author2 |
Raunvísindastofnun (HÍ) Science Institute (UI) Verkfræði- og náttúruvísindasvið (HÍ) School of Engineering and Natural Sciences (UI) Háskóli Íslands University of Iceland |
format |
Article in Journal/Newspaper |
author |
Hajihoseini, Hamidreza Thorsteinsson, Einar B. Sigurjonsdottir, Vilborg V. Arnalds, Unnar B. |
author_facet |
Hajihoseini, Hamidreza Thorsteinsson, Einar B. Sigurjonsdottir, Vilborg V. Arnalds, Unnar B. |
author_sort |
Hajihoseini, Hamidreza |
title |
Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films |
title_short |
Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films |
title_full |
Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films |
title_fullStr |
Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films |
title_full_unstemmed |
Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films |
title_sort |
strained interface layer contributions to the structural and electronic properties of epitaxial v2o3 films |
publisher |
AIP Publishing |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11815/2561 https://doi.org/10.1063/5.0043941 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Applied Physics Letters;118(16) https://aip.scitation.org/doi/pdf/10.1063/5.0043941 Hajihoseini, H., Thorsteinsson, E. B., Sigurjonsdottir, V. V., & Arnalds, U. B. (2021). Strained interface layer contributions to the structural and electronic properties of epitaxial V2O3 films. 118(16), 161602. doi:10.1063/5.0043941 0003-6951 1077-3118 https://hdl.handle.net/20.500.11815/2561 Applied Physics Letters doi:10.1063/5.0043941 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/2561 https://doi.org/10.1063/5.0043941 |
container_title |
Applied Physics Letters |
container_volume |
118 |
container_issue |
16 |
container_start_page |
161602 |
_version_ |
1766037455628140544 |