Photoinduced evolution of lattice orthorhombicity and conceivably enhanced ferromagnetism in LaMnO3 membranes
Lu, Qinwen1,2; Cheng, Yun3; Wu, Lijun4; Guo, Hongli5; Qi, Fengfeng3; Zhang, Haijuan3; Yu, Junxiao3; Liu, Qixin1; Wang, Qing2; Liang, Genhao1,2
2022-04-20
发表期刊NPJ QUANTUM MATERIALS
EISSN2397-4648
卷号7期号:1
发表状态已发表
DOI10.1038/s41535-022-00456-4
摘要Ultrashort laser pulses have been utilized to dynamically drive phase transitions in correlated quantum materials. Of particular interest is whether phases not achievable in thermal equilibrium can be induced in complex oxides with intricately coupled lattice, electron and spin degrees of freedom. Here, we tracked atomic motions in LaMnO following photoexcitation with MeV ultrafast electron diffraction (MeV-UED) technique. We found that the light excited state exhibits numerous signatures different from thermal equilibrium ones, including nearly conserved Bragg intensities, strongly suppressed La cation and oxygen anion displacements, and the long-range lattice orthorhombicity evolution. Furthermore, using first-principles calculations, we predict that the ferromagnetic ordering and conductivity are both enhanced upon laser excitation due to the reduction of the lattice orthorhombicity. This work benefits from recent advance in fabrication of membrane films with high epitaxial quality and in MeV-UED with large momentum space access and high temporal resolution.
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收录类别SCIE
语种英语
Scopus 记录号2-s2.0-85128462857
来源库Scopus
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/176065
专题物质科学与技术学院_硕士生
物质科学与技术学院_PI研究组_翟晓芳组
通讯作者Xiang, Dao; Zhao, Jin; Zhu, Yimei; Zhai, Xiaofang
作者单位1.Department of Materials Science and Technology,Department of Physics,University of Science and Technology of China,Hefei,230026,China
2.School of Physical Science and Technology,ShanghaiTech University,Pudong,Shanghai,201210,China
3.Key Laboratory for Laser Plasmas (Ministry of Education),School of Physics and Astronomy,Collaborative Innovation Center of IFSA (CICIFSA),Shanghai Jiao Tong University,Shanghai,200240,China
4.Condensed Matter Physics and Materials Science Division,Brookhaven National Laboratory,Upton,11973,United States
5.Department of Physics and Astronomy,California State University Northridge,Northridge,91330-8268,United States
6.Tsung-Dao Lee Institute,Shanghai Jiao Tong University,Shanghai,200240,China
7.Zhangjiang Institute for Advanced Study,Shanghai Jiao Tong University,Shanghai,200240,China
第一作者单位物质科学与技术学院
通讯作者单位物质科学与技术学院
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Lu, Qinwen,Cheng, Yun,Wu, Lijun,et al. Photoinduced evolution of lattice orthorhombicity and conceivably enhanced ferromagnetism in LaMnO3 membranes[J]. NPJ QUANTUM MATERIALS,2022,7(1).
APA Lu, Qinwen.,Cheng, Yun.,Wu, Lijun.,Guo, Hongli.,Qi, Fengfeng.,...&Zhai, Xiaofang.(2022).Photoinduced evolution of lattice orthorhombicity and conceivably enhanced ferromagnetism in LaMnO3 membranes.NPJ QUANTUM MATERIALS,7(1).
MLA Lu, Qinwen,et al."Photoinduced evolution of lattice orthorhombicity and conceivably enhanced ferromagnetism in LaMnO3 membranes".NPJ QUANTUM MATERIALS 7.1(2022).
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