Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates
The crystal structures of LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates at oxygen pressure of 10−3 millibars or 10−5 millibars, where kinetics of ablated species hardly depend on oxygen background pressure, are compared. Our results show that the interface between LaAlO3 and SrT...
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sg-ntu-dr.10356-1039162023-02-28T19:42:49Z Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates Park, Jihwey Soh, Yeong-Ah Aeppli, Gabriel David, Adrian Lin, Weinan Wu, Tom School of Physical and Mathematical Sciences DRNTU::Science::Physics The crystal structures of LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates at oxygen pressure of 10−3 millibars or 10−5 millibars, where kinetics of ablated species hardly depend on oxygen background pressure, are compared. Our results show that the interface between LaAlO3 and SrTiO3 is sharper when the oxygen pressure is lower. Over time, the formation of various crystalline phases is observed while the crystalline thickness of the LaAlO3 layer remains unchanged. X-ray scattering as well as atomic force microscopy measurements indicate three-dimensional growth of such phases, which appear to be fed from an amorphous capping layer present in as-grown samples. Published version 2014-05-20T08:12:42Z 2019-12-06T21:23:00Z 2014-05-20T08:12:42Z 2019-12-06T21:23:00Z 2014 2014 Journal Article Park, J., Soh, Y.-A., Aeppli, G., David, A., Lin, W., & Wu, T. (2014). Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates. Applied Physics Letters, 104(8), 081604-. 0003-6951 https://hdl.handle.net/10356/103916 http://hdl.handle.net/10220/19420 10.1063/1.4866439 en Applied physics letters © 2014 AIP Publishing LLC. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The paper can be found at the following official DOI: http://dx.doi.org/10.1063/1.4866439. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
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DRNTU::Science::Physics Park, Jihwey Soh, Yeong-Ah Aeppli, Gabriel David, Adrian Lin, Weinan Wu, Tom Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates |
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The crystal structures of LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates at oxygen pressure of 10−3 millibars or 10−5 millibars, where kinetics of ablated species hardly depend on oxygen background pressure, are compared. Our results show that the interface between LaAlO3 and SrTiO3 is sharper when the oxygen pressure is lower. Over time, the formation of various crystalline phases is observed while the crystalline thickness of the LaAlO3 layer remains unchanged. X-ray scattering as well as atomic force microscopy measurements indicate three-dimensional growth of such phases, which appear to be fed from an amorphous capping layer present in as-grown samples. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Park, Jihwey Soh, Yeong-Ah Aeppli, Gabriel David, Adrian Lin, Weinan Wu, Tom |
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Park, Jihwey Soh, Yeong-Ah Aeppli, Gabriel David, Adrian Lin, Weinan Wu, Tom |
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Park, Jihwey |
title |
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates |
title_short |
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates |
title_full |
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates |
title_fullStr |
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates |
title_full_unstemmed |
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates |
title_sort |
influence of oxygen pressure and aging on laalo3 films grown by pulsed laser deposition on srtio3 substrates |
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2014 |
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https://hdl.handle.net/10356/103916 http://hdl.handle.net/10220/19420 |
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1759853394049105920 |