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| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2402.11634 |
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| _version_ | 1866913236965654528 |
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| author | Stoica, Vladimir A. Yang, Tiannan Das, Sujit Cao, Yue Wang, Huaiyu Kubota, Yuya Dai, Cheng Padmanabhan, Hari Sato, Yusuke Mangu, Anudeep Nguyen, Quynh L. Zhang, Zhan Talreja, Disha Zajac, Marc E. Walko, Donald A. DiChiara, Anthony D. Owada, Shigeki Miyanishi, Kohei Tamasaku, Kenji Sato, Takahiro Glownia, James M. Esposito, Vincent Nelson, Silke Hoffmann, Matthias C. Schaller, Richard D. Lindenberg, Aaron M. Martin, Lane W. Ramesh, Ramamoorthy Matsuda, Iwao Zhu, Diling Chen, Long-Q. Wen, Haidan Gopalan, Venkatraman Freeland, John W. |
| author_facet | Stoica, Vladimir A. Yang, Tiannan Das, Sujit Cao, Yue Wang, Huaiyu Kubota, Yuya Dai, Cheng Padmanabhan, Hari Sato, Yusuke Mangu, Anudeep Nguyen, Quynh L. Zhang, Zhan Talreja, Disha Zajac, Marc E. Walko, Donald A. DiChiara, Anthony D. Owada, Shigeki Miyanishi, Kohei Tamasaku, Kenji Sato, Takahiro Glownia, James M. Esposito, Vincent Nelson, Silke Hoffmann, Matthias C. Schaller, Richard D. Lindenberg, Aaron M. Martin, Lane W. Ramesh, Ramamoorthy Matsuda, Iwao Zhu, Diling Chen, Long-Q. Wen, Haidan Gopalan, Venkatraman Freeland, John W. |
| contents | Ultrafast stimuli can stabilize metastable states of matter inaccessible by equilibrium means. Establishing the spatiotemporal link between ultrafast excitation and metastability is crucial to understanding these phenomena. Here, we use single-shot optical-pump, X-ray-probe measurements to provide snapshots of the emergence of a persistent polar vortex supercrystal in a heterostructure that hosts a fine balance between built-in electrostatic and elastic frustrations by design. By perturbing this balance with photoinduced charges, a starting heterogenous mixture of polar phases disorders within a few picoseconds, resulting in a soup state composed of disordered ferroelectric and suppressed vortex orders. On the pico-to-nanosecond timescales, transient labyrinthine fluctuations form in this soup along with a recovering vortex order. On longer timescales, these fluctuations are progressively quenched by dynamical strain modulations, which drive the collective emergence of a single supercrystal phase. Our results, corroborated by dynamical phase-field modeling, reveal how ultrafast excitation of designer systems generates pathways for persistent metastability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_11634 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Non-equilibrium pathways to emergent polar supertextures Stoica, Vladimir A. Yang, Tiannan Das, Sujit Cao, Yue Wang, Huaiyu Kubota, Yuya Dai, Cheng Padmanabhan, Hari Sato, Yusuke Mangu, Anudeep Nguyen, Quynh L. Zhang, Zhan Talreja, Disha Zajac, Marc E. Walko, Donald A. DiChiara, Anthony D. Owada, Shigeki Miyanishi, Kohei Tamasaku, Kenji Sato, Takahiro Glownia, James M. Esposito, Vincent Nelson, Silke Hoffmann, Matthias C. Schaller, Richard D. Lindenberg, Aaron M. Martin, Lane W. Ramesh, Ramamoorthy Matsuda, Iwao Zhu, Diling Chen, Long-Q. Wen, Haidan Gopalan, Venkatraman Freeland, John W. Materials Science Ultrafast stimuli can stabilize metastable states of matter inaccessible by equilibrium means. Establishing the spatiotemporal link between ultrafast excitation and metastability is crucial to understanding these phenomena. Here, we use single-shot optical-pump, X-ray-probe measurements to provide snapshots of the emergence of a persistent polar vortex supercrystal in a heterostructure that hosts a fine balance between built-in electrostatic and elastic frustrations by design. By perturbing this balance with photoinduced charges, a starting heterogenous mixture of polar phases disorders within a few picoseconds, resulting in a soup state composed of disordered ferroelectric and suppressed vortex orders. On the pico-to-nanosecond timescales, transient labyrinthine fluctuations form in this soup along with a recovering vortex order. On longer timescales, these fluctuations are progressively quenched by dynamical strain modulations, which drive the collective emergence of a single supercrystal phase. Our results, corroborated by dynamical phase-field modeling, reveal how ultrafast excitation of designer systems generates pathways for persistent metastability. |
| title | Non-equilibrium pathways to emergent polar supertextures |
| topic | Materials Science |
| url | https://arxiv.org/abs/2402.11634 |