Flexomagnetoelectric effect in Sr2IrO4 thin films
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909066949820416 |
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| author | Liu, Xin Hu, Ting Zhang, Yujun Xu, Xueli Wu, Biao Ma, Zongwei Lv, Peng Zhang, Yuelin Huang, Shih-Wen Wu, Jialu Ma, Jing Hong, Jiawang Sheng, Zhigao Jia, Chenglong Kan, Erjun Nan, Ce-Wen Zhang, Jinxing |
| author_facet | Liu, Xin Hu, Ting Zhang, Yujun Xu, Xueli Wu, Biao Ma, Zongwei Lv, Peng Zhang, Yuelin Huang, Shih-Wen Wu, Jialu Ma, Jing Hong, Jiawang Sheng, Zhigao Jia, Chenglong Kan, Erjun Nan, Ce-Wen Zhang, Jinxing |
| contents | Symmetry engineering is explicitly effective to manipulate and even create phases and orderings in strongly correlated materials. Flexural stress is universally practical to break the space-inversion or time-reversal symmetry. Here, by introducing strain gradient in a centrosymmetric antiferromagnet Sr2IrO4, the space-inversion symmetry is broken accompanying a non-equivalent O p-Ir d orbital hybridization along z axis. Thus, emergent polar phase and out-of-plane magnetic moment have been simultaneously observed in these asymmetric Sr2IrO4 thin films, which both are absent in its ground state. Furthermore, upon the application of magnetic field, such polarization can be controlled by modifying the occupied d orbitals through spin-orbit interaction, giving rise to a flexomagnetoelectric effect. This work provides a general strategy to artificially design multiple symmetries and ferroic orderings in strongly correlated systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_04541 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Flexomagnetoelectric effect in Sr2IrO4 thin films Liu, Xin Hu, Ting Zhang, Yujun Xu, Xueli Wu, Biao Ma, Zongwei Lv, Peng Zhang, Yuelin Huang, Shih-Wen Wu, Jialu Ma, Jing Hong, Jiawang Sheng, Zhigao Jia, Chenglong Kan, Erjun Nan, Ce-Wen Zhang, Jinxing Strongly Correlated Electrons Symmetry engineering is explicitly effective to manipulate and even create phases and orderings in strongly correlated materials. Flexural stress is universally practical to break the space-inversion or time-reversal symmetry. Here, by introducing strain gradient in a centrosymmetric antiferromagnet Sr2IrO4, the space-inversion symmetry is broken accompanying a non-equivalent O p-Ir d orbital hybridization along z axis. Thus, emergent polar phase and out-of-plane magnetic moment have been simultaneously observed in these asymmetric Sr2IrO4 thin films, which both are absent in its ground state. Furthermore, upon the application of magnetic field, such polarization can be controlled by modifying the occupied d orbitals through spin-orbit interaction, giving rise to a flexomagnetoelectric effect. This work provides a general strategy to artificially design multiple symmetries and ferroic orderings in strongly correlated systems. |
| title | Flexomagnetoelectric effect in Sr2IrO4 thin films |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2401.04541 |