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High-temperature ferromagnetic semiconductor with a field-tunable green fluorescent effect

文献类型：期刊论文

作者Zhou, Bowen1,6; Zhao, Qing1; Liu, Zhehong1,6; Shen, Xudong1,6; Ye, Xubin1,6; Shi, Jiangjian1,6; Liao, Zhiyu1,6; Wang, Weipeng1,6; Hu, Zhiwei7; Lin, Hong-Ji2
刊名NPG ASIA MATERIALS
出版日期2020-10-23
卷号12
ISSN号1884-4049
DOI10.1038/s41427-020-00250-3
通讯作者Li, Zhi(zhili@njust.edu.cn) ; Long, Youwen(ywlong@iphy.ac.cn)
英文摘要Ferromagnetic semiconductors with luminescent effects provide a unique platform for studying magneto-electric-optical multifunctional devices. However, little is known about such materials with spin ordering well above room temperature. By using a unique high-pressure annealing method, a Cr and Fe disordered perovskite oxide SrCr0.5Fe0.5O2.875 (SCFO) with a simple cubic structure was prepared. Magnetic measurements demonstrated the ferromagnetic behavior with a spin ordering temperature as high as 600 K. In contrast to metallic SrCrO3 and SrFeO3, SCFO, with a moderate oxygen deficiency, is a direct bandgap semiconductor with an energy gap of 2.28 eV, which is within the visible light region. As a consequence, SCFO displays a green fluorescent effect arising from the d-p bonding and anti-bonding states. Moreover, the photoluminescence intensity can be tuned by a magnetic field. This work opens up a new avenue for research on room-temperature multifunctional materials with coupled magnetic, electrical, and optical performance.
WOS关键词MAGNETIC-PROPERTIES ; STATES
资助项目National Key R&D Program of China[2018YFE0103200] ; National Key R&D Program of China[2018YFA0305700] ; National Natural Science Foundation of China[11934017] ; National Natural Science Foundation of China[51772324] ; National Natural Science Foundation of China[11921004] ; National Natural Science Foundation of China[11574378] ; National Natural Science Foundation of China[11574316] ; Chinese Academy of Sciences[XDB33010200] ; Chinese Academy of Sciences[QYZDB-SSW-SLH013] ; Max Planck-POSTECH-Hsinchu Center for Complex Phase Materials
WOS研究方向Materials Science
语种英语
出版者NATURE RESEARCH
WOS记录号WOS:000586492800001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Max Planck-POSTECH-Hsinchu Center for Complex Phase Materials
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/105241]  
专题中国科学院合肥物质科学研究院
通讯作者Li, Zhi; Long, Youwen
作者单位1.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
2.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan
3.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei 230031, Peoples R China
4.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China
5.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
6.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
7.Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany
推荐引用方式
GB/T 7714		 Zhou, Bowen,Zhao, Qing,Liu, Zhehong,et al. High-temperature ferromagnetic semiconductor with a field-tunable green fluorescent effect[J]. NPG ASIA MATERIALS,2020,12.
APA Zhou, Bowen.,Zhao, Qing.,Liu, Zhehong.,Shen, Xudong.,Ye, Xubin.,...&Long, Youwen.(2020).High-temperature ferromagnetic semiconductor with a field-tunable green fluorescent effect.NPG ASIA MATERIALS,12.
MLA Zhou, Bowen,et al."High-temperature ferromagnetic semiconductor with a field-tunable green fluorescent effect".NPG ASIA MATERIALS 12(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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