Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films

Daichi Oka, Yasushi Hirose, Hideyuki Kamisaka, Tomoteru Fukumura, Kimikazu Sasa, Satoshi Ishii, Hiroyuki Matsuzaki, Yukio Sato, Yuichi Ikuhara, Tetsuya Hasegawa

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Compressively strained SrTaO2N thin films were epitaxially grown on SrTiO3 substrates using nitrogen plasma-assisted pulsed laser deposition. Piezoresponse force microscopy measurements revealed small domains (101 - 102 nm) that exhibited classical ferroelectricity, a behaviour not previously observed in perovskite oxynitrides. The surrounding matrix region exhibited relaxor ferroelectric-like behaviour, with remanent polarisation invoked by domain poling. First-principles calculations suggested that the small domains and the surrounding matrix had trans-type and a cis-type anion arrangements, respectively. These experiments demonstrate the promise of tailoring the functionality of perovskite oxynitrides by modifying the anion arrangements by using epitaxial strain.

Original languageEnglish
Article number4987
JournalScientific reports
Volume4
DOIs
Publication statusPublished - May 16 2014

Fingerprint

oxynitrides
ferroelectricity
thin films
anions
nitrogen plasma
matrices
pulsed laser deposition
microscopy
polarization

All Science Journal Classification (ASJC) codes

  • General

Cite this

Oka, D., Hirose, Y., Kamisaka, H., Fukumura, T., Sasa, K., Ishii, S., ... Hasegawa, T. (2014). Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films. Scientific reports, 4, [4987]. https://doi.org/10.1038/srep04987

Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films. / Oka, Daichi; Hirose, Yasushi; Kamisaka, Hideyuki; Fukumura, Tomoteru; Sasa, Kimikazu; Ishii, Satoshi; Matsuzaki, Hiroyuki; Sato, Yukio; Ikuhara, Yuichi; Hasegawa, Tetsuya.

In: Scientific reports, Vol. 4, 4987, 16.05.2014.

Research output: Contribution to journalArticle

Oka, D, Hirose, Y, Kamisaka, H, Fukumura, T, Sasa, K, Ishii, S, Matsuzaki, H, Sato, Y, Ikuhara, Y & Hasegawa, T 2014, 'Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films', Scientific reports, vol. 4, 4987. https://doi.org/10.1038/srep04987
Oka D, Hirose Y, Kamisaka H, Fukumura T, Sasa K, Ishii S et al. Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films. Scientific reports. 2014 May 16;4. 4987. https://doi.org/10.1038/srep04987
Oka, Daichi ; Hirose, Yasushi ; Kamisaka, Hideyuki ; Fukumura, Tomoteru ; Sasa, Kimikazu ; Ishii, Satoshi ; Matsuzaki, Hiroyuki ; Sato, Yukio ; Ikuhara, Yuichi ; Hasegawa, Tetsuya. / Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films. In: Scientific reports. 2014 ; Vol. 4.
@article{44449df29e7a46088e2a72d242775541,
title = "Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films",
abstract = "Compressively strained SrTaO2N thin films were epitaxially grown on SrTiO3 substrates using nitrogen plasma-assisted pulsed laser deposition. Piezoresponse force microscopy measurements revealed small domains (101 - 102 nm) that exhibited classical ferroelectricity, a behaviour not previously observed in perovskite oxynitrides. The surrounding matrix region exhibited relaxor ferroelectric-like behaviour, with remanent polarisation invoked by domain poling. First-principles calculations suggested that the small domains and the surrounding matrix had trans-type and a cis-type anion arrangements, respectively. These experiments demonstrate the promise of tailoring the functionality of perovskite oxynitrides by modifying the anion arrangements by using epitaxial strain.",
author = "Daichi Oka and Yasushi Hirose and Hideyuki Kamisaka and Tomoteru Fukumura and Kimikazu Sasa and Satoshi Ishii and Hiroyuki Matsuzaki and Yukio Sato and Yuichi Ikuhara and Tetsuya Hasegawa",
year = "2014",
month = "5",
day = "16",
doi = "10.1038/srep04987",
language = "English",
volume = "4",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - Possible ferroelectricity in perovskite oxynitride SrTaO2N epitaxial thin films

AU - Oka, Daichi

AU - Hirose, Yasushi

AU - Kamisaka, Hideyuki

AU - Fukumura, Tomoteru

AU - Sasa, Kimikazu

AU - Ishii, Satoshi

AU - Matsuzaki, Hiroyuki

AU - Sato, Yukio

AU - Ikuhara, Yuichi

AU - Hasegawa, Tetsuya

PY - 2014/5/16

Y1 - 2014/5/16

N2 - Compressively strained SrTaO2N thin films were epitaxially grown on SrTiO3 substrates using nitrogen plasma-assisted pulsed laser deposition. Piezoresponse force microscopy measurements revealed small domains (101 - 102 nm) that exhibited classical ferroelectricity, a behaviour not previously observed in perovskite oxynitrides. The surrounding matrix region exhibited relaxor ferroelectric-like behaviour, with remanent polarisation invoked by domain poling. First-principles calculations suggested that the small domains and the surrounding matrix had trans-type and a cis-type anion arrangements, respectively. These experiments demonstrate the promise of tailoring the functionality of perovskite oxynitrides by modifying the anion arrangements by using epitaxial strain.

AB - Compressively strained SrTaO2N thin films were epitaxially grown on SrTiO3 substrates using nitrogen plasma-assisted pulsed laser deposition. Piezoresponse force microscopy measurements revealed small domains (101 - 102 nm) that exhibited classical ferroelectricity, a behaviour not previously observed in perovskite oxynitrides. The surrounding matrix region exhibited relaxor ferroelectric-like behaviour, with remanent polarisation invoked by domain poling. First-principles calculations suggested that the small domains and the surrounding matrix had trans-type and a cis-type anion arrangements, respectively. These experiments demonstrate the promise of tailoring the functionality of perovskite oxynitrides by modifying the anion arrangements by using epitaxial strain.

UR - http://www.scopus.com/inward/record.url?scp=84901289143&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901289143&partnerID=8YFLogxK

U2 - 10.1038/srep04987

DO - 10.1038/srep04987

M3 - Article

AN - SCOPUS:84901289143

VL - 4

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 4987

ER -