Ultrafast Photovoltaic Response in Ferroelectric Nanolayers
We show that light drives large-amplitude structural changes in thin films of the prototypical ferroelectric PbTiO[subscript 3] via direct coupling to its intrinsic photovoltaic response. Using time-resolved x-ray scattering to visualize atomic displacements on femtosecond time scales, photoinduced...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/71560 https://orcid.org/0000-0001-7804-5418 |
| _version_ | 1826204067597123584 |
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| author | Daranciang, Dan Highland, Matthew J. Wen, Haidan Young, Steve M. Brandt, Nathaniel Curran Hwang, Harold Young Vattilana, Michael Nicoul, Matthieu Quirin, Florian Goodfellow, John Qi, Tingting Grinberg, Ilya Fritz, David M. Cammarata, Marco Zhu, Diling Lemke, Henrik T. Walko, Donald A. Dufresne, Eric M. Li, Yuelin Larsson, Jo¨rgen Reis, David A. Sokolowski-Tinten, Klaus Nelson, Keith Adam Rappe, Andrew M. Fuoss, Paul H. Stephenson, G. Brian Lindenberg, Aaron M. |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Daranciang, Dan Highland, Matthew J. Wen, Haidan Young, Steve M. Brandt, Nathaniel Curran Hwang, Harold Young Vattilana, Michael Nicoul, Matthieu Quirin, Florian Goodfellow, John Qi, Tingting Grinberg, Ilya Fritz, David M. Cammarata, Marco Zhu, Diling Lemke, Henrik T. Walko, Donald A. Dufresne, Eric M. Li, Yuelin Larsson, Jo¨rgen Reis, David A. Sokolowski-Tinten, Klaus Nelson, Keith Adam Rappe, Andrew M. Fuoss, Paul H. Stephenson, G. Brian Lindenberg, Aaron M. |
| author_sort | Daranciang, Dan |
| collection | MIT |
| description | We show that light drives large-amplitude structural changes in thin films of the prototypical ferroelectric PbTiO[subscript 3] via direct coupling to its intrinsic photovoltaic response. Using time-resolved x-ray scattering to visualize atomic displacements on femtosecond time scales, photoinduced changes in the unit-cell tetragonality are observed. These are driven by the motion of photogenerated free charges within the ferroelectric and can be simply explained by a model including both shift and screening currents, associated with the displacement of electrons first antiparallel to and then parallel to the ferroelectric polarization direction. |
| first_indexed | 2024-09-23T12:48:24Z |
| format | Article |
| id | mit-1721.1/71560 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:48:24Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/715602022-10-01T11:11:56Z Ultrafast Photovoltaic Response in Ferroelectric Nanolayers Daranciang, Dan Highland, Matthew J. Wen, Haidan Young, Steve M. Brandt, Nathaniel Curran Hwang, Harold Young Vattilana, Michael Nicoul, Matthieu Quirin, Florian Goodfellow, John Qi, Tingting Grinberg, Ilya Fritz, David M. Cammarata, Marco Zhu, Diling Lemke, Henrik T. Walko, Donald A. Dufresne, Eric M. Li, Yuelin Larsson, Jo¨rgen Reis, David A. Sokolowski-Tinten, Klaus Nelson, Keith Adam Rappe, Andrew M. Fuoss, Paul H. Stephenson, G. Brian Lindenberg, Aaron M. Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. School of Science Nelson, Keith Adam Brandt, Nathaniel Curran Hwang, Harold Young Nelson, Keith Adam We show that light drives large-amplitude structural changes in thin films of the prototypical ferroelectric PbTiO[subscript 3] via direct coupling to its intrinsic photovoltaic response. Using time-resolved x-ray scattering to visualize atomic displacements on femtosecond time scales, photoinduced changes in the unit-cell tetragonality are observed. These are driven by the motion of photogenerated free charges within the ferroelectric and can be simply explained by a model including both shift and screening currents, associated with the displacement of electrons first antiparallel to and then parallel to the ferroelectric polarization direction. United States. Dept. of Energy (contract DE-FG02-07ER46431) United States. Office of Naval Research (grant N00014-06-1- 0459) 2012-07-09T14:25:22Z 2012-07-09T14:25:22Z 2012-02 2011-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/71560 Daranciang, Dan et al. “Ultrafast Photovoltaic Response in Ferroelectric Nanolayers.” Physical Review Letters 108.8 (2012). © 2012 American Physical Society https://orcid.org/0000-0001-7804-5418 en_US http://dx.doi.org/10.1103/PhysRevLett.108.087601 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Daranciang, Dan Highland, Matthew J. Wen, Haidan Young, Steve M. Brandt, Nathaniel Curran Hwang, Harold Young Vattilana, Michael Nicoul, Matthieu Quirin, Florian Goodfellow, John Qi, Tingting Grinberg, Ilya Fritz, David M. Cammarata, Marco Zhu, Diling Lemke, Henrik T. Walko, Donald A. Dufresne, Eric M. Li, Yuelin Larsson, Jo¨rgen Reis, David A. Sokolowski-Tinten, Klaus Nelson, Keith Adam Rappe, Andrew M. Fuoss, Paul H. Stephenson, G. Brian Lindenberg, Aaron M. Ultrafast Photovoltaic Response in Ferroelectric Nanolayers |
| title | Ultrafast Photovoltaic Response in Ferroelectric Nanolayers |
| title_full | Ultrafast Photovoltaic Response in Ferroelectric Nanolayers |
| title_fullStr | Ultrafast Photovoltaic Response in Ferroelectric Nanolayers |
| title_full_unstemmed | Ultrafast Photovoltaic Response in Ferroelectric Nanolayers |
| title_short | Ultrafast Photovoltaic Response in Ferroelectric Nanolayers |
| title_sort | ultrafast photovoltaic response in ferroelectric nanolayers |
| url | http://hdl.handle.net/1721.1/71560 https://orcid.org/0000-0001-7804-5418 |
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