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Research Article

Near room-temperature ferromagnetism in air-stable two-dimensional Cr1−xTe grown by chemical vapor deposition

Zhansheng Gao1,§, Ming Tang2,§, Junwei Huang2,§, Jiabiao Chen1, Wei Ai1, Linglu Wu2, Xinyue Dong1, Yifei Ma1, Zheshan Zhang1, Lei Zhang1, Yaping Du1, Huixia Fu3, Hongtao Yuan2( ), Jinxiong Wu1,4( ), Feng Luo1( )
Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
Center of Quantum Materials and Devices & College of Physics, Chongqing University, Chongqing 401331, China
Beijing National Laboratory for Molecular Sciences, Beijing 100871, China

§ Zhansheng Gao, Ming Tang, and Junwei Huang contributed equally to this work.

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Graphical Abstract

Two-dimensional Cr1−xTe grown by chemical vapor deposition (CVD) exhibits tunable Curie temperature up to 285 K, and out-of-plane ferromagnetic order down to atomically thin limit, as evidenced by anomalous Hall effects observed in non-encapsulated samples. Moreover, the CVD-grown Cr1−xTe nanosheets present excellent ambient stability, with no apparent change in surface roughness or electrical transport properties after exposure to air for months.

Abstract

Identifying air-stable two-dimensional (2D) ferromagnetism with high Curie temperature (Tc) is highly desirable for its potential applications in next-generation spintronics. However, most of the work reported so far mainly focuses on promoting one specific key factor of 2D ferromagnetism (Tc or air stability), rather than comprehensive promotion of both of them. Herein, ultrathin Cr1–xTe crystals grown by chemical vapor deposition (CVD) show thickness-dependent Tc up to 285 K. The out-of-plane ferromagnetic order is well preserved down to atomically thin limit (2.0 nm), as evidenced by anomalous Hall effect observed in non-encapsulated samples. Besides, the CVD-grown Cr1−xTe nanosheets present excellent ambient stability, with no apparent change in surface roughness or electrical transport properties after exposure to air for months. Our work provides an alternative platform for investigation of intrinsic 2D ferromagnetism and development of innovative spintronic devices.

Keywords

Cr1-xTe room-temperature ferromagnetismair stabilityanomalous Hall effectchemical vapor deposition

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References

1

Jiang, S. W.; Shan, J.; Mak, K. F. Electric-field switching of two-dimensional van der Waals magnets. Nat. Mater. 2018, 17, 406–410.
Crossref Google Scholar
2

Jiang, S. W.; Li, L. Z.; Wang, Z. F.; Mak, K. F.; Shan, J. Controlling magnetism in 2D CrI3 by electrostatic doping. Nat. Nanotechnol. 2018, 13, 549–553.
Crossref Google Scholar
3

Chen, W. J.; Sun, Z. Y.; Wang, Z. J.; Gu, L. H.; Xu, X. D.; Wu, S. W.; Gao, C. L. Direct observation of van der Waals stacking-dependent interlayer magnetism. Science 2019, 366, 983–987.
Crossref Google Scholar
4

Huang, B.; Clark, G.; Klein, D. R.; MacNeill, D.; Navarro-Moratalla, E.; Seyler, K. L.; Wilson, N.; McGuire, M. A.; Cobden, D. H.; Xiao, D. et al. Electrical control of 2D magnetism in bilayer CrI3. Nat. Nanotechnol. 2018, 13, 544–548.
Crossref Google Scholar
5

Wang, Z.; Zhang, T. Y.; Ding, M.; Dong, B. J.; Li, Y. X.; Chen, M. L.; Li, X. X.; Huang, J. Q.; Wang, H. W.; Zhao, X. T. et al. Electric-field control of magnetism in a few-layered van der Waals ferromagnetic semiconductor. Nat. Nanotechnol. 2018, 13, 554–559.
Crossref Google Scholar
6

Burch, K. S.; Mandrus, D.; Park, J. G. Magnetism in two-dimensional van der Waals materials. Nature 2018, 563, 47–52.
Crossref Google Scholar
7

Song, T. C.; Cai, X. H.; Tu, M. W. Y.; Zhang, X. O.; Huang, B.; Wilson, N. P.; Seyler, K. L.; Zhu, L.; Taniguchi, T.; Watanabe, K. et al. Giant tunneling magnetoresistance in spin-filter van der Waals heterostructures. Science 2018, 360, 1214–1218.
Crossref Google Scholar
8

Klein, D. R.; MacNeill, D.; Lado, J. L.; Soriano, D.; Navarro-Moratalla, E.; Watanabe, K.; Taniguchi, T.; Manni, S.; Canfield, P.; Fernández-Rossier, J. et al. Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling. Science 2018, 360, 1218–1222.
Crossref Google Scholar
9

Huang, B.; Clark, G.; Navarro-Moratalla, E.; Klein, D. R.; Cheng, R.; Seyler, K. L.; Zhong, D.; Schmidgall, E.; McGuire, M. A.; Cobden, D. H. et al. Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit. Nature 2017, 546, 270–273.
Crossref Google Scholar
10

Wang, X.; Tang, J.; Xia, X. X.; He, C. L.; Zhang, J. W.; Liu, Y. Z.; Wan, C. H.; Fang, C.; Guo, C. Y.; Yang, W. L. et al. Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2. Sci. Adv. 2019, 5, eaaw8904.
Crossref Google Scholar
11

Fei, Z. Y.; Huang, B.; Malinowski, P.; Wang, W. B.; Song, T. C.; Sanchez, J.; Yao, W.; Xiao, D.; Zhu, X. Y.; May, A. F. et al. Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2. Nat. Mater. 2018, 17, 778–782.
Crossref Google Scholar
12

Gong, C.; Li, L.; Li, Z. L.; Ji, H. W.; Stern, A.; Xia, Y.; Cao, T.; Bao, W.; Wang, C. Z.; Wang, Y. et al. Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals. Nature 2017, 546, 265–269.
Crossref Google Scholar
13

Wang, Z.; Gutiérrez-Lezama, I.; Ubrig, N.; Kroner, M.; Gibertini, M.; Taniguchi, T.; Watanabe, K.; Imamoğlu, A.; Giannini, E.; Morpurgo, A. F. Very large tunneling magnetoresistance in layered magnetic semiconductor CrI3. Nat. Commun. 2018, 9, 2516.
Crossref Google Scholar
14

Su, J. W.; Wang, M. S.; Liu, G. H.; Li, H. Q.; Han, J. B.; Zhai, T. Y. Air-stable 2D intrinsic ferromagnetic Ta3FeS6 with four months durability. Adv. Sci. 2020, 7, 2001722.
Crossref Google Scholar
15

Zhang, Y.; Chu, J. W.; Yin, L.; Shifa, T. A.; Cheng, Z. Z.; Cheng, R. Q.; Wang, F.; Wen, Y.; Zhan, X. Y.; Wang, Z. X. et al. Ultrathin magnetic 2D single-crystal CrSe. Adv. Mater. 2019, 31, 1900056.
Crossref Google Scholar
16

Wen, Y.; Liu, Z. H.; Zhang, Y.; Xia, C. X.; Zhai, B. X.; Zhang, X. H.; Zhai, G. H.; Shen, C.; He, P.; Cheng, R. Q. et al. Tunable room-temperature ferromagnetism in two-dimensional Cr2Te3. Nano Lett. 2020, 20, 3130–3139.
Crossref Google Scholar
17

Deng, Y. J.; Yu, Y. J.; Song, Y. C.; Zhang, J. Z.; Wang, N. Z.; Sun, Z. Y.; Yi, Y. F.; Wu, Y. Z.; Wu, S. W.; Zhu, J. Y. et al. Gate-tunable room-temperature ferromagnetism in two-dimensional Fe3GeTe2. Nature 2018, 563, 94–99.
Crossref Google Scholar
18

Meng, L. J.; Zhou, Z.; Xu, M. Q.; Yang, S. Q.; Si, K. P.; Liu, L. X.; Wang, X. G.; Jiang, H. N.; Li, B. X.; Qin, P. X. et al. Anomalous thickness dependence of Curie temperature in air-stable two-dimensional ferromagnetic 1T-CrTe2 grown by chemical vapor deposition. Nat. Commun. 2021, 12, 809.
Crossref Google Scholar
19

Li, B.; Wan, Z.; Wang, C.; Chen, P.; Huang, B.; Cheng, X.; Qian, Q.; Li, J.; Zhang, Z. W.; Sun, G. Z. et al. Van der Waals epitaxial growth of air-stable CrSe2 nanosheets with thickness-tunable magnetic order. Nat. Mater. 2021, 20, 818–825.
Crossref Google Scholar
20

May, A. F.; Ovchinnikov, D.; Zheng, Q.; Hermann, R.; Calder, S.; Huang, B.; Fei, Z. Y.; Liu, Y. H.; Xu, X. D.; McGuire, M. A. Ferromagnetism near room temperature in the cleavable van der Waals crystal Fe5GeTe2. ACS Nano 2019, 13, 4436–4442.
Crossref Google Scholar
21

Freitas, D. C.; Weht, R.; Sulpice, A.; Remenyi, G.; Strobel, P.; Gay, F.; Marcus, J.; Núñez-Regueiro, M. Ferromagnetism in layered metastable 1T-CrTe2. J. Phys.: Condens. Matter 2015, 27, 176002.
Crossref Google Scholar
22

Li, H. X.; Wang, L. J.; Chen, J. S.; Yu, T.; Zhou, L.; Qiu, Y.; He, H. T.; Ye, F.; Sou, I. K.; Wang, G. Molecular beam epitaxy grown Cr2Te3 thin films with tunable Curie temperatures for spintronic devices. ACS Appl. Nano Mater. 2019, 2, 6809–6817.
Crossref Google Scholar
23

Purbawati, A.; Coraux, J.; Vogel, J.; Hadj-Azzem, A.; Wu, N.; Bendiab, N.; Jegouso, D.; Renard, J.; Marty, L.; Bouchiat, V. et al. In-plane magnetic domains and Neel-like domain walls in thin flakes of the room temperature CrTe2 Van der Waals ferromagnet. ACS Appl. Mater. Interfaces 2020, 12, 30702–30710.
Crossref Google Scholar
24

Zhang, W.; Wong, P. K. J.; Zhu, R.; Wee, A. T. S. Van der Waals magnets: Wonder building blocks for two-dimensional spintronics? InfoMat 2019, 1, 479–495.
Crossref Google Scholar
25

Gibertini, M.; Koperski, M.; Morpurgo, A. F.; Novoselov, K. S. Magnetic 2D materials and heterostructures. Nat. Nanotechnol. 2019, 14, 408–419.
Crossref Google Scholar
26

Yang, H.; Wang, F.; Zhang, H. S.; Guo, L. H.; Hu, L. Y.; Wang, L. F.; Xue, D. J.; Xu, X. H. Solution synthesis of layered van der Waals (vdW) ferromagnetic CrGeTe3 nanosheets from a non-vdW Cr2Te3 template. J. Am. Chem. Soc. 2020, 142, 4438–4444.
Crossref Google Scholar
27

Chu, J. W.; Zhang, Y.; Wen, Y.; Qiao, R. X.; Wu, C. C.; He, P.; Yin, L.; Cheng, R. Q.; Wang, F.; Wang, Z. X. et al. Sub-millimeter-scale growth of one-unit-cell-thick ferrimagnetic Cr2S3 nanosheets. Nano Lett. 2019, 19, 2154–2161.
Crossref Google Scholar
28

Fu, Q. D.; Zhu, C.; Zhao, X. X.; Wang, X. L.; Chaturvedi, A.; Zhu, C.; Wang, X. W.; Zeng, Q. S.; Zhou, J. D.; Liu, F. C. et al. Ultrasensitive 2D Bi2O2Se phototransistors on silicon substrates. Adv. Mater. 2019, 31, 1804945.
Crossref Google Scholar
29

Polesya, S.; Mankovsky, S.; Benea, D.; Ebert, H.; Bensch, W. Finite-temperature magnetism of CrTe and CrSe. J. Phys. :Condens. Matter 2010, 22, 156002.
Crossref Google Scholar
30

Gao, P.; Liu, H. J.; Huang, Y. L.; Chu, Y. H.; Ishikawa, R.; Feng, B.; Jiang, Y.; Shibata, N.; Wang, E. G.; Ikuhara, Y. Atomic mechanism of polarization-controlled surface reconstruction in ferroelectric thin films. Nat. Commun. 2016, 7, 11318.
Crossref Google Scholar
31

Nagaosa, N.; Sinova, J.; Onoda, S.; MacDonald, A. H.; Ong, N. P. Anomalous hall effect. Rev. Mod. Phys. 2010, 82, 1539–1592.
Crossref Google Scholar
32

Zhou, L.; Chen, J. S.; Du, Z. Z.; He, X. S.; Ye, B. C.; Guo, G. P.; Lu, H. Z.; Wang, G.; He, H. T. Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy. AIP Adv. 2017, 7, 125116.
Crossref Google Scholar
33

Yue, D.; Jin, X. F. Towards a better understanding of the anomalous hall effect. J. Phys. Soc. Jpn. 2017, 86, 011006.
Crossref Google Scholar
34

Keskin, V.; Aktaş, B.; Schmalhorst, J.; Reiss, G.; Zhang, H.; Weischenberg, J.; Mokrousov, Y. Temperature and Co thickness dependent sign change of the anomalous Hall effect in Co/Pd multilayers: An experimental and theoretical study. Appl. Phys. Lett. 2013, 102, 022416.
Crossref Google Scholar
35

Zhao, D. P.; Zhang, L. G.; Malik, I. A.; Liao, M. H.; Cui, W. Q.; Cai, X. Q.; Zheng, C.; Li, L. X.; Hu, X. P.; Zhang, D. et al. Observation of unconventional anomalous Hall effect in epitaxial CrTe thin films. Nano Res. 2018, 11, 3116–3121.
Crossref Google Scholar
36

Roy, A.; Guchhait, S.; Dey, R.; Pramanik, T.; Hsieh, C. C.; Rai, A.; Banerjee, S. K. Perpendicular magnetic anisotropy and spin glass-like behavior in molecular beam epitaxy grown chromium telluride thin films. ACS Nano 2015, 9, 3772–3779.
Crossref Google Scholar
Nano Research
Volume 15 Issue 4,
April 2022
Pages 3763-3769
DOI: 10.1007/s12274-021-3909-7
Cite this article:
Gao Z, Tang M, Huang J, et al. Near room-temperature ferromagnetism in air-stable two-dimensional Cr1−xTe grown by chemical vapor deposition. Nano Research, 2022, 15(4): 3763-3769. https://doi.org/10.1007/s12274-021-3909-7
Topics:
Chemical vapor deposition

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Received: 18 August 2021
Revised: 13 September 2021
Accepted: 26 September 2021
Published: 22 October 2021
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021
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