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| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2406.16520 |
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| _version_ | 1866915264712409088 |
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| author | Zhou, Guangdi Huang, Haoliang Wang, Fengzhe Wang, Heng Yang, Qishuo Nie, Zihao Lv, Wei Ding, Cui Li, Yueying Lin, Jiayi Yue, Changming Li, Danfeng Sun, Yujie Lin, Junhao Zhang, Guang-Ming Xue, Qi-Kun Chen, Zhuoyu |
| author_facet | Zhou, Guangdi Huang, Haoliang Wang, Fengzhe Wang, Heng Yang, Qishuo Nie, Zihao Lv, Wei Ding, Cui Li, Yueying Lin, Jiayi Yue, Changming Li, Danfeng Sun, Yujie Lin, Junhao Zhang, Guang-Ming Xue, Qi-Kun Chen, Zhuoyu |
| contents | In designing material functionalities for transition metal oxides, lattice structure and d-orbital occupancy are key determinants. However, the modulation of these two factors is inherently limited by the need to balance thermodynamic stability, growth kinetics, and stoichiometry precision, particularly for metastable phases. We introduce a methodology, namely the gigantic-oxidative atomic-layer-by-layer epitaxy (GOALL-Epitaxy), enhancing oxidation power 3-4 orders of magnitude beyond conventional pulsed laser deposition (PLD) and oxide molecular beam epitaxy (OMBE), while ensuring atomic-layer-by-layer growth of designed complex structures. Thermodynamic stability is markedly augmented with stronger oxidation at elevated temperatures, whereas growth kinetics is sustained by laser ablation at lower temperatures. We demonstrate the accurate growth of complex nickelates and cuprates, especially an artificially designed structure with alternating single and double NiO2 layers possessing distinct nominal d-orbital occupancy, as a parent of high-temperature superconductor. The GOALL-Epitaxy enables material discovery within the vastly broadened growth parameter space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_16520 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gigantic-oxidative atomic-layer-by-layer epitaxy for artificially designed complex oxides Zhou, Guangdi Huang, Haoliang Wang, Fengzhe Wang, Heng Yang, Qishuo Nie, Zihao Lv, Wei Ding, Cui Li, Yueying Lin, Jiayi Yue, Changming Li, Danfeng Sun, Yujie Lin, Junhao Zhang, Guang-Ming Xue, Qi-Kun Chen, Zhuoyu Strongly Correlated Electrons Materials Science Superconductivity In designing material functionalities for transition metal oxides, lattice structure and d-orbital occupancy are key determinants. However, the modulation of these two factors is inherently limited by the need to balance thermodynamic stability, growth kinetics, and stoichiometry precision, particularly for metastable phases. We introduce a methodology, namely the gigantic-oxidative atomic-layer-by-layer epitaxy (GOALL-Epitaxy), enhancing oxidation power 3-4 orders of magnitude beyond conventional pulsed laser deposition (PLD) and oxide molecular beam epitaxy (OMBE), while ensuring atomic-layer-by-layer growth of designed complex structures. Thermodynamic stability is markedly augmented with stronger oxidation at elevated temperatures, whereas growth kinetics is sustained by laser ablation at lower temperatures. We demonstrate the accurate growth of complex nickelates and cuprates, especially an artificially designed structure with alternating single and double NiO2 layers possessing distinct nominal d-orbital occupancy, as a parent of high-temperature superconductor. The GOALL-Epitaxy enables material discovery within the vastly broadened growth parameter space. |
| title | Gigantic-oxidative atomic-layer-by-layer epitaxy for artificially designed complex oxides |
| topic | Strongly Correlated Electrons Materials Science Superconductivity |
| url | https://arxiv.org/abs/2406.16520 |