Strain-Dependence of the Structure and Ferroic Properties of Epitaxial NiTiO 3 Thin Films Grown on Different Substrates
Abstract
Polarization-induced weak ferromagnetism has been predicted a few years back in perovskite MTiO 3 (M = Fe, Mn, and Ni). We set out to stabilize this metastable perovskite structure by growing NiTiO 3 epitaxially on different substrates and to investigate the dependence of polar and magnetic properties on strain. Epitaxial NiTiO 3 films were deposited on Al 2 O 3 , Fe 2 O 3 , and LiNbO 3 substrates by pulsed laser deposition and characterized using several techniques. The effect of substrate choice on lattice strain, film structure, and physical properties was investigated. Our structural data from X-ray diffraction and electron microscopy shows that substrate-induced strain has a marked effect on the structure and crystalline quality of the films. Physical property measurements reveal a dependence of the weak ferromagnetism and lattice polarization on strain and highlight our ability to control the ferroic properties in NiTiO 3 thin films by the choice of substrate. Our results are also consistent with the theoretical prediction that the ferromagnetism in acentric NiTiO 3 is polarization induced. From the substrates studied here, the perovskite substrate LiNbO 3 proved to be the most promising one for strong multiferroism.
- Authors:
-
[1];
- Environmental Molecular Sciences Laboratory, Richland, WA 99354, USA
- Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1210103
- Resource Type:
- Published Article
- Journal Name:
- Advances in Condensed Matter Physics
- Additional Journal Information:
- Journal Name: Advances in Condensed Matter Physics Journal Volume: 2015; Journal ID: ISSN 1687-8108
- Publisher:
- Hindawi Publishing Corporation
- Country of Publication:
- Egypt
- Language:
- English
Citation Formats
Varga, Tamas, Droubay, Timothy C., Bowden, Mark E., Kovarik, Libor, Hu, Dehong, and Chambers, Scott A. Strain-Dependence of the Structure and Ferroic Properties of Epitaxial NiTiO 3 Thin Films Grown on Different Substrates. Egypt: N. p., 2015.
Web. doi:10.1155/2015/493045.
Varga, Tamas, Droubay, Timothy C., Bowden, Mark E., Kovarik, Libor, Hu, Dehong, & Chambers, Scott A. Strain-Dependence of the Structure and Ferroic Properties of Epitaxial NiTiO 3 Thin Films Grown on Different Substrates. Egypt. https://doi.org/10.1155/2015/493045
Varga, Tamas, Droubay, Timothy C., Bowden, Mark E., Kovarik, Libor, Hu, Dehong, and Chambers, Scott A. Thu .
"Strain-Dependence of the Structure and Ferroic Properties of Epitaxial NiTiO 3 Thin Films Grown on Different Substrates". Egypt. https://doi.org/10.1155/2015/493045.
@article{osti_1210103,
title = {Strain-Dependence of the Structure and Ferroic Properties of Epitaxial NiTiO 3 Thin Films Grown on Different Substrates},
author = {Varga, Tamas and Droubay, Timothy C. and Bowden, Mark E. and Kovarik, Libor and Hu, Dehong and Chambers, Scott A.},
abstractNote = {Polarization-induced weak ferromagnetism has been predicted a few years back in perovskite MTiO 3 (M = Fe, Mn, and Ni). We set out to stabilize this metastable perovskite structure by growing NiTiO 3 epitaxially on different substrates and to investigate the dependence of polar and magnetic properties on strain. Epitaxial NiTiO 3 films were deposited on Al 2 O 3 , Fe 2 O 3 , and LiNbO 3 substrates by pulsed laser deposition and characterized using several techniques. The effect of substrate choice on lattice strain, film structure, and physical properties was investigated. Our structural data from X-ray diffraction and electron microscopy shows that substrate-induced strain has a marked effect on the structure and crystalline quality of the films. Physical property measurements reveal a dependence of the weak ferromagnetism and lattice polarization on strain and highlight our ability to control the ferroic properties in NiTiO 3 thin films by the choice of substrate. Our results are also consistent with the theoretical prediction that the ferromagnetism in acentric NiTiO 3 is polarization induced. From the substrates studied here, the perovskite substrate LiNbO 3 proved to be the most promising one for strong multiferroism.},
doi = {10.1155/2015/493045},
journal = {Advances in Condensed Matter Physics},
number = ,
volume = 2015,
place = {Egypt},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}
https://doi.org/10.1155/2015/493045
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