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Two-Dimensional Room-Temperature Magnetic Nonstoichiometric Fe7Se8 Nanocrystals: Controllable Synthesis and Magnetic Behavior
Zhao, Zijing1,2; Zhou, Jian3,4; Liu, Luhao3,4; Liu, Nanshu5; Huang, Jianqi6; Zhang, Biao1; Li, Wei1; Zeng, Yi1; Zhang, Teng1; Ji, Wei5; Yang, Teng6; Zhang, Zhidong6; Li, Songlin3,4; Hou, Yanglong1,2
Corresponding AuthorYang, Teng(yangteng@imr.ac.cn) ; Li, Songlin(sli@nju.edu.cn) ; Hou, Yanglong(hou@pku.edu.cn)
2022-01-21
Source PublicationNANO LETTERS
ISSN1530-6984
Pages9
AbstractTwo-dimensional (2D) magnetic materials have attracted significant attention for promising applications in energy-saving logic and robust memory devices. However, most 2D magnets discovered so far typically feature drawbacks for practical applications due to low critical temperatures. Herein, we synthesize ultrathin room-temperature (RT) magnetic Fe7Se8 nanoflakes via the space-confined chemical vapor deposition method. It is found that the appropriate supply and control of Se concentration in the reaction chamber is crucial for synthesizing high-quality non-stoichiometric Fe7Se8 nanoflakes. Cryogenic electrical and magnetic characterizations reveal the emergence of spin reorientation at & SIM;130 K and the survival of long-range magnetic ordering up to room temperature. The RT magnetic domain structures with different thicknesses are also uncovered by magnetic force microscopy. Moreover, theoretical calculations confirm the spin configuration and metallic band structure. The outstanding characteristics exhibited by Fe7Se8 nanoflakes, including RT magnetism, spin reorientation property, and good electrical conductivity, make them a potential candidate for RT spintronics.
KeywordTwo-dimensional magnetic materials Fe7Se8 space-confined chemical vapor deposition nonstoichiometric compounds room-temperature magnetic
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
DOI10.1021/acs.nanolett.1c04403
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0206301] ; National Key R&D Program of China[2017YFA0206304] ; National Natural Science Foundation of China[51631001] ; National Natural Science Foundation of China[51672010] ; National Natural Science Foundation of China[11974422]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000748031000001
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173664
Collection中国科学院金属研究所
Corresponding AuthorYang, Teng; Li, Songlin; Hou, Yanglong
Affiliation1.Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol, Sch Mat Sci & Engn, Beijing Key Lab Magnetoelect Mat & Devices, Beijing 100871, Peoples R China
2.Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China
3.Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
4.Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China
5.Renmin Univ China, Dept Phys, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China
6.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Zijing,Zhou, Jian,Liu, Luhao,et al. Two-Dimensional Room-Temperature Magnetic Nonstoichiometric Fe7Se8 Nanocrystals: Controllable Synthesis and Magnetic Behavior[J]. NANO LETTERS,2022:9.
APA Zhao, Zijing.,Zhou, Jian.,Liu, Luhao.,Liu, Nanshu.,Huang, Jianqi.,...&Hou, Yanglong.(2022).Two-Dimensional Room-Temperature Magnetic Nonstoichiometric Fe7Se8 Nanocrystals: Controllable Synthesis and Magnetic Behavior.NANO LETTERS,9.
MLA Zhao, Zijing,et al."Two-Dimensional Room-Temperature Magnetic Nonstoichiometric Fe7Se8 Nanocrystals: Controllable Synthesis and Magnetic Behavior".NANO LETTERS (2022):9.
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