Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films
A morphotropic phase boundary driven by epitaxial strain has been observed in lead-free multiferroic BiFeO3 thin films and the strain-driven phase transitions have been widely reported as iso-symmetric Cc-Cc by recent works. In this paper, it is suggested that the tetragonal-like BiFeO3 phase identi...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2012
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| Online Access: | https://hdl.handle.net/10356/94387 http://hdl.handle.net/10220/7515 |
| _version_ | 1811679494492127232 |
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| author | Chen, Zuhuang Luo, Zhenlin Huang, Chuanwei Qi, Yajun Yang, Ping You, Lu Hu, Chuansheng Wu, Tom Wang, Junling Gao, Chen Sritharan, Thirumany Chen, Lang |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Chen, Zuhuang Luo, Zhenlin Huang, Chuanwei Qi, Yajun Yang, Ping You, Lu Hu, Chuansheng Wu, Tom Wang, Junling Gao, Chen Sritharan, Thirumany Chen, Lang |
| author_sort | Chen, Zuhuang |
| collection | NTU |
| description | A morphotropic phase boundary driven by epitaxial strain has been observed in lead-free multiferroic BiFeO3 thin films and the strain-driven phase transitions have been widely reported as iso-symmetric Cc-Cc by recent works. In this paper, it is suggested that the tetragonal-like BiFeO3 phase identified in epitaxial films on (001) LaAlO3 single crystal substrates is monoclinic MC. This MC phase is different from the MA type monoclinic phase reported in BiFeO3 films grown on low mismatch substrates, such as SrTiO3. This is confirmed not only by synchrotron X-ray studies but also by piezoresponse force microscopy measurements. The polarization vectors of the tetragonal-like phase lie in the (100) plane, not the (110) plane as previously reported. A phenomenological analysis is proposed to explain the formation of MC Phase. Such a low-symmetry MC phase, with its linkage to MA phase and the multiphase coexistence open an avenue for large piezoelectric response in BiFeO3 films and shed light on a complete understanding of possible polarization rotation paths and enhanced multiferroicity in BiFeO3 films mediated by epitaxial strain. This work may also aid the understanding of developing new lead-free strain-driven morphotropic phase boundary in other ferroic systems. |
| first_indexed | 2024-10-01T03:10:03Z |
| format | Journal Article |
| id | ntu-10356/94387 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:10:03Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/943872020-06-01T10:13:52Z Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films Chen, Zuhuang Luo, Zhenlin Huang, Chuanwei Qi, Yajun Yang, Ping You, Lu Hu, Chuansheng Wu, Tom Wang, Junling Gao, Chen Sritharan, Thirumany Chen, Lang School of Materials Science & Engineering DRNTU::Engineering::Materials::Functional and smart materials A morphotropic phase boundary driven by epitaxial strain has been observed in lead-free multiferroic BiFeO3 thin films and the strain-driven phase transitions have been widely reported as iso-symmetric Cc-Cc by recent works. In this paper, it is suggested that the tetragonal-like BiFeO3 phase identified in epitaxial films on (001) LaAlO3 single crystal substrates is monoclinic MC. This MC phase is different from the MA type monoclinic phase reported in BiFeO3 films grown on low mismatch substrates, such as SrTiO3. This is confirmed not only by synchrotron X-ray studies but also by piezoresponse force microscopy measurements. The polarization vectors of the tetragonal-like phase lie in the (100) plane, not the (110) plane as previously reported. A phenomenological analysis is proposed to explain the formation of MC Phase. Such a low-symmetry MC phase, with its linkage to MA phase and the multiphase coexistence open an avenue for large piezoelectric response in BiFeO3 films and shed light on a complete understanding of possible polarization rotation paths and enhanced multiferroicity in BiFeO3 films mediated by epitaxial strain. This work may also aid the understanding of developing new lead-free strain-driven morphotropic phase boundary in other ferroic systems. 2012-02-07T04:51:22Z 2019-12-06T18:55:19Z 2012-02-07T04:51:22Z 2019-12-06T18:55:19Z 2011 2011 Journal Article Chen, Z., Luo, Z., Huang, C., Qi, Y., Yang, P., You, L., & et al. (2011). Low-Symmetry Monoclinic Phases and Polarization Rotation Path Mediated by Epitaxial Strain in Multiferroic BiFeO3 Thin Films. Advanced Functional Materials, 21(1), 133-138. https://hdl.handle.net/10356/94387 http://hdl.handle.net/10220/7515 10.1002/adfm.201001867 en Advanced functional materials © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Materials::Functional and smart materials Chen, Zuhuang Luo, Zhenlin Huang, Chuanwei Qi, Yajun Yang, Ping You, Lu Hu, Chuansheng Wu, Tom Wang, Junling Gao, Chen Sritharan, Thirumany Chen, Lang Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films |
| title | Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films |
| title_full | Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films |
| title_fullStr | Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films |
| title_full_unstemmed | Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films |
| title_short | Low-symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic BiFeO3 thin films |
| title_sort | low symmetry monoclinic phases and polarization rotation path mediated by epitaxial strain in multiferroic bifeo3 thin films |
| topic | DRNTU::Engineering::Materials::Functional and smart materials |
| url | https://hdl.handle.net/10356/94387 http://hdl.handle.net/10220/7515 |
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