Anomalous exchange bias at collinear/noncollinear spin interface
We report on the interfacial magnetic coupling in manganite bilayers of collinear ferromagnetic La0.7 Sr0.3 MnO3 and noncollinear multiferroic TbMnO3. Exchange bias is observed at the Néel temperature of TbMnO3 (∼41 K) due to the onset of long-range antiferromagnetic ordering in the Mn spin sublatti...
| Main Authors: | , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/97676 http://hdl.handle.net/10220/12017 |
| _version_ | 1811686850534834176 |
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| author | Tian, Y. F. Ding, J. F. Lin, W. N. Chen, Z. H. David, A. He, M. Hu, W. J. Chen, Lang Wu, Tom |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Tian, Y. F. Ding, J. F. Lin, W. N. Chen, Z. H. David, A. He, M. Hu, W. J. Chen, Lang Wu, Tom |
| author_sort | Tian, Y. F. |
| collection | NTU |
| description | We report on the interfacial magnetic coupling in manganite bilayers of collinear ferromagnetic La0.7 Sr0.3 MnO3 and noncollinear multiferroic TbMnO3. Exchange bias is observed at the Néel temperature of TbMnO3 (∼41 K) due to the onset of long-range antiferromagnetic ordering in the Mn spin sublattice. Interestingly, an anomalous plateau of exchange bias emerges at the ordering temperature of Tb spins (∼10 K), and we ascribe this unique feature to the strong coupling between Tb and Mn spin sublattices in TbMnO3, which in turn influences the magnetic coupling across the interface. On the other hand, the enhancement of coercivity in La0.7 Sr0.3 MnO 3/TbMnO3 shows monotonous temperature dependence. Our results illustrate a strong interfacial magnetic interaction at the La 0.7 Sr 0.3 MnO3/TbMnO3 interface, highlighting the roles of competing spin orders, magnetic frustration, and coupling between multiple spin sublattices in artificial collinear/noncollinear spin heterostructures. |
| first_indexed | 2024-10-01T05:06:58Z |
| format | Journal Article |
| id | ntu-10356/97676 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:06:58Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/976762023-02-28T19:21:36Z Anomalous exchange bias at collinear/noncollinear spin interface Tian, Y. F. Ding, J. F. Lin, W. N. Chen, Z. H. David, A. He, M. Hu, W. J. Chen, Lang Wu, Tom School of Materials Science & Engineering School of Physical and Mathematical Sciences We report on the interfacial magnetic coupling in manganite bilayers of collinear ferromagnetic La0.7 Sr0.3 MnO3 and noncollinear multiferroic TbMnO3. Exchange bias is observed at the Néel temperature of TbMnO3 (∼41 K) due to the onset of long-range antiferromagnetic ordering in the Mn spin sublattice. Interestingly, an anomalous plateau of exchange bias emerges at the ordering temperature of Tb spins (∼10 K), and we ascribe this unique feature to the strong coupling between Tb and Mn spin sublattices in TbMnO3, which in turn influences the magnetic coupling across the interface. On the other hand, the enhancement of coercivity in La0.7 Sr0.3 MnO 3/TbMnO3 shows monotonous temperature dependence. Our results illustrate a strong interfacial magnetic interaction at the La 0.7 Sr 0.3 MnO3/TbMnO3 interface, highlighting the roles of competing spin orders, magnetic frustration, and coupling between multiple spin sublattices in artificial collinear/noncollinear spin heterostructures. Published version 2013-07-23T02:44:12Z 2019-12-06T19:45:18Z 2013-07-23T02:44:12Z 2019-12-06T19:45:18Z 2013 2013 Journal Article Tian, Y. F., Ding, J. F., Lin, W. N., Chen, Z. H., David, A., He, M., et al. (2013). Anomalous exchange bias at collinear/noncollinear spin interface. Scientific Reports, 3. 2045-2322 https://hdl.handle.net/10356/97676 http://hdl.handle.net/10220/12017 10.1038/srep01094 en Scientific reports © 2013 The Authors(Nature Publishing Group). This paper was published in Scientific Reports and is made available as an electronic reprint (preprint) with permission of The Authors(Nature Publishing Group). The paper can be found at the following official DOI: [http://dx.doi.org/10.1038/srep01094]. 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 |
| spellingShingle | Tian, Y. F. Ding, J. F. Lin, W. N. Chen, Z. H. David, A. He, M. Hu, W. J. Chen, Lang Wu, Tom Anomalous exchange bias at collinear/noncollinear spin interface |
| title | Anomalous exchange bias at collinear/noncollinear spin interface |
| title_full | Anomalous exchange bias at collinear/noncollinear spin interface |
| title_fullStr | Anomalous exchange bias at collinear/noncollinear spin interface |
| title_full_unstemmed | Anomalous exchange bias at collinear/noncollinear spin interface |
| title_short | Anomalous exchange bias at collinear/noncollinear spin interface |
| title_sort | anomalous exchange bias at collinear noncollinear spin interface |
| url | https://hdl.handle.net/10356/97676 http://hdl.handle.net/10220/12017 |
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