Sub-millimeter-Scale Growth of One-Unit-Cell-Thick Ferrimagnetic Cr 2 S 3 Nanosheets
Two-dimensional (2D) magnetic materials provide an ideal platform for the application in spintronic devices due to their unique spin states in nanometer scale. However, recent research on the exfoliated monolayer magnetic materials suffers from the instability in ambient atmosphere, which needs extr...
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| Vydáno v: | Nano letters |
|---|---|
| Hlavní autoři: | , , , , , , , , , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
United States
13.03.2019
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| Témata: | |
| ISSN: | 1530-6992 |
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| Abstract | Two-dimensional (2D) magnetic materials provide an ideal platform for the application in spintronic devices due to their unique spin states in nanometer scale. However, recent research on the exfoliated monolayer magnetic materials suffers from the instability in ambient atmosphere, which needs extraordinary protection. Hence the controllable synthesis of 2D magnetic materials with good quality and stability should be addressed. Here we report for the first time the van der Waals (vdW) epitaxial growth of one-unit-cell-thick air-stable ferrimagnet Cr
S
semiconductor via a facile chemical vapor deposition method. Single crystal Cr
S
with the domain size reaching to 200 μm is achieved. Most importantly, we observe the as grown Cr
S
with a Néel temperature ( T
) of up to 120 K and a maximum saturation magnetic momentum of up to 65 μemu. As the temperature decreases, the samples show a transition from soft magnet to hard magnet with the highest coercivity of 1000 Oe. The one-unit-cell-thick Cr
S
devices show a p-type transfer behavior with an on/off ratio over 10
. Our work highlights Cr
S
monolayer as an ideal magnetic semiconductor for 2D spintronic devices. The vdW epitaxy of nonlayered magnets introduces a new route for realizing magnetism in 2D limit and provides more application potential in the 2D spintronics. |
|---|---|
| AbstractList | Two-dimensional (2D) magnetic materials provide an ideal platform for the application in spintronic devices due to their unique spin states in nanometer scale. However, recent research on the exfoliated monolayer magnetic materials suffers from the instability in ambient atmosphere, which needs extraordinary protection. Hence the controllable synthesis of 2D magnetic materials with good quality and stability should be addressed. Here we report for the first time the van der Waals (vdW) epitaxial growth of one-unit-cell-thick air-stable ferrimagnet Cr
S
semiconductor via a facile chemical vapor deposition method. Single crystal Cr
S
with the domain size reaching to 200 μm is achieved. Most importantly, we observe the as grown Cr
S
with a Néel temperature ( T
) of up to 120 K and a maximum saturation magnetic momentum of up to 65 μemu. As the temperature decreases, the samples show a transition from soft magnet to hard magnet with the highest coercivity of 1000 Oe. The one-unit-cell-thick Cr
S
devices show a p-type transfer behavior with an on/off ratio over 10
. Our work highlights Cr
S
monolayer as an ideal magnetic semiconductor for 2D spintronic devices. The vdW epitaxy of nonlayered magnets introduces a new route for realizing magnetism in 2D limit and provides more application potential in the 2D spintronics. |
| Author | Chu, Junwei Wu, Chunchun Wang, Zhenxing Xiong, Jie Zhang, Yu He, Jun Qiao, Ruixi Li, Yanrong Wang, Feng Cheng, Ruiqing He, Peng Yin, Lei Wen, Yao |
| Author_xml | – sequence: 1 givenname: Junwei surname: Chu fullname: Chu, Junwei organization: State Key Laboratory of Electronic Thin Films and Integrated Devices , University of Electronic Science and Technology of China , Chengdu 610054 , China – sequence: 2 givenname: Yu surname: Zhang fullname: Zhang, Yu organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 3 givenname: Yao surname: Wen fullname: Wen, Yao organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 4 givenname: Ruixi surname: Qiao fullname: Qiao, Ruixi organization: School of Physics , Peking University , Beijing 100871 , China – sequence: 5 givenname: Chunchun surname: Wu fullname: Wu, Chunchun organization: State Key Laboratory of Electronic Thin Films and Integrated Devices , University of Electronic Science and Technology of China , Chengdu 610054 , China – sequence: 6 givenname: Peng surname: He fullname: He, Peng organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 7 givenname: Lei surname: Yin fullname: Yin, Lei organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 8 givenname: Ruiqing surname: Cheng fullname: Cheng, Ruiqing organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 9 givenname: Feng surname: Wang fullname: Wang, Feng organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 10 givenname: Zhenxing surname: Wang fullname: Wang, Zhenxing organization: CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Nanosystem and Hierarchical Fabrication , National Center for Nanoscience and Technology , Beijing 100190 , China – sequence: 11 givenname: Jie orcidid: 0000-0003-3881-6948 surname: Xiong fullname: Xiong, Jie organization: State Key Laboratory of Electronic Thin Films and Integrated Devices , University of Electronic Science and Technology of China , Chengdu 610054 , China – sequence: 12 givenname: Yanrong surname: Li fullname: Li, Yanrong organization: State Key Laboratory of Electronic Thin Films and Integrated Devices , University of Electronic Science and Technology of China , Chengdu 610054 , China – sequence: 13 givenname: Jun orcidid: 0000-0002-2355-7579 surname: He fullname: He, Jun organization: School of Physics and Technology , Wuhan University , Wuhan 430072 , China |
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| Title | Sub-millimeter-Scale Growth of One-Unit-Cell-Thick Ferrimagnetic Cr 2 S 3 Nanosheets |
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