Stabilisation of Fe 2 O 3 -rich Perovskite Nanophase in Epitaxial Rare-earth Doped BiFeO 3 Films

Huairuo Zhang, Ian M. Reaney, Daniel M. Marincel, Susan Trolier-Mckinstry, Quentin M. Ramasse, Ian Maclaren, Scott D. Findlay, Robert D. Fraleigh, Ian M. Ross, Shunbo Hu, Wei Ren, W. Mark Rainforth

Research output: Contribution to journalArticle

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Abstract

Researchers have demonstrated that BiFeO3 exhibits ferroelectric hysteresis but none have shown a strong ferromagnetic response in either bulk or thin film without significant structural or compositional modification. When remanent magnetisations are observed in BiFeO3 based thin films, iron oxide second phases are often detected. Using aberration-corrected scanning transmission electron microscopy, atomic resolution electron energy loss spectrum-mapping and quantitative energy dispersive X-ray spectroscopy analysis, we reveal the existence of a new Fe2 O3 -rich perovskite nanophase, with an approximate formula (Fe0.6 Bi0.25 Nd0.15)3+ Fe3+ O3, formed within epitaxial Ti and Nd doped BiFeO3 perovskite films grown by pulsed laser deposition. The incorporation of Nd and Bi ions on the A-site and coherent growth with the matrix stabilise the Fe2 O3 -rich perovskite phase and preliminary density functional theory calculations suggest that it should have a ferrimagnetic response. Perovskite-structured Fe2 O3 has been reported previously but never conclusively proven when fabricated at high-pressure high-temperature. This work suggests the incorporation of large A-site species may help stabilise perovskite-structured Fe2 O3. This finding is therefore significant not only to the thin film but also to the high-pressure community.

Original languageEnglish (US)
Article number13066
JournalScientific reports
Volume5
DOIs
StatePublished - Aug 14 2015

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X-Ray Emission Spectrometry
Pressure
Scanning Transmission Electron Microscopy
Lasers
Research Personnel
perovskite
Electrons
Ions
Temperature
Growth
ferric oxide

All Science Journal Classification (ASJC) codes

  • General

Cite this

Zhang, H., Reaney, I. M., Marincel, D. M., Trolier-Mckinstry, S., Ramasse, Q. M., Maclaren, I., ... Mark Rainforth, W. (2015). Stabilisation of Fe 2 O 3 -rich Perovskite Nanophase in Epitaxial Rare-earth Doped BiFeO 3 Films. Scientific reports, 5, [13066]. https://doi.org/10.1038/srep13066
Zhang, Huairuo ; Reaney, Ian M. ; Marincel, Daniel M. ; Trolier-Mckinstry, Susan ; Ramasse, Quentin M. ; Maclaren, Ian ; Findlay, Scott D. ; Fraleigh, Robert D. ; Ross, Ian M. ; Hu, Shunbo ; Ren, Wei ; Mark Rainforth, W. / Stabilisation of Fe 2 O 3 -rich Perovskite Nanophase in Epitaxial Rare-earth Doped BiFeO 3 Films. In: Scientific reports. 2015 ; Vol. 5.
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abstract = "Researchers have demonstrated that BiFeO3 exhibits ferroelectric hysteresis but none have shown a strong ferromagnetic response in either bulk or thin film without significant structural or compositional modification. When remanent magnetisations are observed in BiFeO3 based thin films, iron oxide second phases are often detected. Using aberration-corrected scanning transmission electron microscopy, atomic resolution electron energy loss spectrum-mapping and quantitative energy dispersive X-ray spectroscopy analysis, we reveal the existence of a new Fe2 O3 -rich perovskite nanophase, with an approximate formula (Fe0.6 Bi0.25 Nd0.15)3+ Fe3+ O3, formed within epitaxial Ti and Nd doped BiFeO3 perovskite films grown by pulsed laser deposition. The incorporation of Nd and Bi ions on the A-site and coherent growth with the matrix stabilise the Fe2 O3 -rich perovskite phase and preliminary density functional theory calculations suggest that it should have a ferrimagnetic response. Perovskite-structured Fe2 O3 has been reported previously but never conclusively proven when fabricated at high-pressure high-temperature. This work suggests the incorporation of large A-site species may help stabilise perovskite-structured Fe2 O3. This finding is therefore significant not only to the thin film but also to the high-pressure community.",
author = "Huairuo Zhang and Reaney, {Ian M.} and Marincel, {Daniel M.} and Susan Trolier-Mckinstry and Ramasse, {Quentin M.} and Ian Maclaren and Findlay, {Scott D.} and Fraleigh, {Robert D.} and Ross, {Ian M.} and Shunbo Hu and Wei Ren and {Mark Rainforth}, W.",
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Zhang, H, Reaney, IM, Marincel, DM, Trolier-Mckinstry, S, Ramasse, QM, Maclaren, I, Findlay, SD, Fraleigh, RD, Ross, IM, Hu, S, Ren, W & Mark Rainforth, W 2015, 'Stabilisation of Fe 2 O 3 -rich Perovskite Nanophase in Epitaxial Rare-earth Doped BiFeO 3 Films', Scientific reports, vol. 5, 13066. https://doi.org/10.1038/srep13066

Stabilisation of Fe 2 O 3 -rich Perovskite Nanophase in Epitaxial Rare-earth Doped BiFeO 3 Films. / Zhang, Huairuo; Reaney, Ian M.; Marincel, Daniel M.; Trolier-Mckinstry, Susan; Ramasse, Quentin M.; Maclaren, Ian; Findlay, Scott D.; Fraleigh, Robert D.; Ross, Ian M.; Hu, Shunbo; Ren, Wei; Mark Rainforth, W.

In: Scientific reports, Vol. 5, 13066, 14.08.2015.

Research output: Contribution to journalArticle

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T1 - Stabilisation of Fe 2 O 3 -rich Perovskite Nanophase in Epitaxial Rare-earth Doped BiFeO 3 Films

AU - Zhang, Huairuo

AU - Reaney, Ian M.

AU - Marincel, Daniel M.

AU - Trolier-Mckinstry, Susan

AU - Ramasse, Quentin M.

AU - Maclaren, Ian

AU - Findlay, Scott D.

AU - Fraleigh, Robert D.

AU - Ross, Ian M.

AU - Hu, Shunbo

AU - Ren, Wei

AU - Mark Rainforth, W.

PY - 2015/8/14

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N2 - Researchers have demonstrated that BiFeO3 exhibits ferroelectric hysteresis but none have shown a strong ferromagnetic response in either bulk or thin film without significant structural or compositional modification. When remanent magnetisations are observed in BiFeO3 based thin films, iron oxide second phases are often detected. Using aberration-corrected scanning transmission electron microscopy, atomic resolution electron energy loss spectrum-mapping and quantitative energy dispersive X-ray spectroscopy analysis, we reveal the existence of a new Fe2 O3 -rich perovskite nanophase, with an approximate formula (Fe0.6 Bi0.25 Nd0.15)3+ Fe3+ O3, formed within epitaxial Ti and Nd doped BiFeO3 perovskite films grown by pulsed laser deposition. The incorporation of Nd and Bi ions on the A-site and coherent growth with the matrix stabilise the Fe2 O3 -rich perovskite phase and preliminary density functional theory calculations suggest that it should have a ferrimagnetic response. Perovskite-structured Fe2 O3 has been reported previously but never conclusively proven when fabricated at high-pressure high-temperature. This work suggests the incorporation of large A-site species may help stabilise perovskite-structured Fe2 O3. This finding is therefore significant not only to the thin film but also to the high-pressure community.

AB - Researchers have demonstrated that BiFeO3 exhibits ferroelectric hysteresis but none have shown a strong ferromagnetic response in either bulk or thin film without significant structural or compositional modification. When remanent magnetisations are observed in BiFeO3 based thin films, iron oxide second phases are often detected. Using aberration-corrected scanning transmission electron microscopy, atomic resolution electron energy loss spectrum-mapping and quantitative energy dispersive X-ray spectroscopy analysis, we reveal the existence of a new Fe2 O3 -rich perovskite nanophase, with an approximate formula (Fe0.6 Bi0.25 Nd0.15)3+ Fe3+ O3, formed within epitaxial Ti and Nd doped BiFeO3 perovskite films grown by pulsed laser deposition. The incorporation of Nd and Bi ions on the A-site and coherent growth with the matrix stabilise the Fe2 O3 -rich perovskite phase and preliminary density functional theory calculations suggest that it should have a ferrimagnetic response. Perovskite-structured Fe2 O3 has been reported previously but never conclusively proven when fabricated at high-pressure high-temperature. This work suggests the incorporation of large A-site species may help stabilise perovskite-structured Fe2 O3. This finding is therefore significant not only to the thin film but also to the high-pressure community.

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