Two-Dimensional Room-Temperature Magnetic Nonstoichiometric Fe7Se8 Nanocrystals: Controllable Synthesis and Magnetic Behavior

doi:10.1021/acs.nanolett.1c04403

IMR OpenIR

	Two-Dimensional Room-Temperature Magnetic Nonstoichiometric Fe7Se8 Nanocrystals: Controllable Synthesis and Magnetic Behavior
	Zhao, Zijing 1,2; Zhou, Jian 3,4; Liu, Luhao 3,4; Liu, Nanshu 5; Huang, Jianqi 6; Zhang, Biao 1; Li, Wei 1; Zeng, Yi 1; Zhang, Teng 1; Ji, Wei 5; Yang, Teng 6; Zhang, Zhidong 6; Li, Songlin 3,4; Hou, Yanglong 1,2
通讯作者	Yang, Teng(yangteng@imr.ac.cn) ; Li, Songlin(sli@nju.edu.cn) ; Hou, Yanglong(hou@pku.edu.cn)
	2022-01-21
发表期刊	NANO LETTERS
ISSN	1530-6984
页码	9
摘要	Two-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.
关键词	Two-dimensional magnetic materials Fe7Se8 space-confined chemical vapor deposition nonstoichiometric compounds room-temperature magnetic
资助者	National Key R&D Program of China ; National Natural Science Foundation of China
DOI	10.1021/acs.nanolett.1c04403
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000748031000001
出版者	AMER CHEMICAL SOC
引用统计	被引频次：50[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173664
专题	中国科学院金属研究所
通讯作者	Yang, Teng; Li, Songlin; Hou, Yanglong
作者单位	1.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
推荐引用方式 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.