journal article·2023-10-10

Exploring the Epitaxial Growth Kinetics and Anomalous Hall Effect in Magnetic Topological Insulator MnBi2Te4 Films

Jiangfan Luo, Qiwei Tong, Zhicheng Jiang, Hui Bai, Jinsong Wu, Xiaolin Liu, Sen Xie, Haoran Ge, Yan Zhao, Yong Liu, Min Hong, Dawei Shen, Qingjie Zhang, Wei Liu, Xinfeng Tang

ACS Nano· Volume 17· Issue 19
Publisher page

Abstract

The discovery of MnBi 2 Te 4 -based intrinsic magnetic topological insulators has fueled tremendous interest in condensed matter physics, owing to their potential as an ideal platform for exploring the quantum anomalous Hall effect and other magnetism–topology interactions. However, the fabrication of single-phase MnBi 2 Te 4 films remains a common challenge in the research field. Herein, we present an effective and simple approach for fabricating high-quality, near-stoichiometric MnBi 2 Te 4 films by directly matching the growth rates of intermediate Bi 2 Te 3 and MnTe. Through systematic experimental studies and thermodynamic calculations, we demonstrate that binary phases of Bi 2 Te 3 and MnTe are easily formed during film growth, and the reaction of Bi 2 Te 3 + MnTe → MnBi 2 Te 4 represents the rate-limiting step among all possible reaction paths, which could result in the presence of Bi 2 Te 3 and MnTe impurity phases in the grown MnBi 2 Te 4 films. Moreover, Bi 2 Te 3 and MnTe impurities introduce negative and positive anomalous Hall (AH) components, respectively, in the AH signals of MnBi 2 Te 4 films. Our work suggests that further manipulation of growth parameters should be the essential route for fabricating phase-pure MnBi 2 Te 4 films.
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Research context

OpenAlex topics: Topological Materials and Phenomena · Advanced Condensed Matter Physics · Quantum many-body systems

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China

State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, Shanghai 200050, China

International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China

The Institute of Technological Sciences, Wuhan University, Wuhan 430070, China

Department of Physics and Technology, Wuhan University, Wuhan 430072, China

Centre for Future Materials, and School of Engineering, University of Southern Queensland, Springfield, Queensland 4300, Australia

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Funding

National Key Research and Development Program of China · State Key Laboratory of Advanced Technology for Materials Synthesis and Processing · National Natural Science Foundation of China

References (60)

Show source-provided references
1. 10.1103/PhysRevLett.45.49410.1103/PhysRevLett.45.494 ↗
2. 10.1103/PhysRevLett.61.201510.1103/PhysRevLett.61.2015 ↗
3. 10.1126/science.118748510.1126/science.1187485 ↗
4. 10.1146/annurev-conmatphys-031115-01141710.1146/annurev-conmatphys-031115-011417 ↗
5. 10.1088/0953-8984/28/12/12300210.1088/0953-8984/28/12/123002 ↗
6. 10.1093/nsr/nwac29610.1093/nsr/nwac296 ↗
7. 10.1038/s42254-018-0011-510.1038/s42254-018-0011-5 ↗
8. 10.1016/j.xinn.2021.10009810.1016/j.xinn.2021.100098 ↗
9. 10.1126/science.118992410.1126/science.1189924 ↗
10. 10.1103/PhysRevLett.109.07680110.1103/PhysRevLett.109.076801 ↗
11. 10.1038/s41586-019-1826-710.1038/s41586-019-1826-7 ↗
12. 10.1126/science.123441410.1126/science.1234414 ↗
13. 10.1038/nmat420410.1038/nmat4204 ↗
14. 10.1002/adma.20160091910.1002/adma.201600919 ↗
15. 10.1002/adma.20170306210.1002/adma.201703062 ↗
16. 10.1038/s41586-020-3020-310.1038/s41586-020-3020-3 ↗
17. 10.1126/science.aax815610.1126/science.aax8156 ↗
18. 10.1093/nsr/nwaa08910.1093/nsr/nwaa089 ↗
19. 10.1093/nsr/nwad18910.1093/nsr/nwad189 ↗
20. 10.1002/idm2.1200910.1002/idm2.12009 ↗
21. 10.1103/PhysRevB.93.04511510.1103/PhysRevB.93.045115 ↗
22. 10.1103/PhysRevLett.120.05680110.1103/PhysRevLett.120.056801 ↗
23. 10.1103/PhysRevLett.122.20640110.1103/PhysRevLett.122.206401 ↗
24. 10.1038/s41563-019-0573-310.1038/s41563-019-0573-3 ↗
25. 10.1103/PhysRevB.100.12110410.1103/PhysRevB.100.121104 ↗
26. 10.1038/s41598-020-70089-910.1038/s41598-020-70089-9 ↗
27. 10.1103/PhysRevB.101.16110910.1103/PhysRevB.101.161109 ↗
28. 10.1088/0256-307X/38/10/10740410.1088/0256-307X/38/10/107404 ↗
29. 10.1088/2053-1583/aa6bec10.1088/2053-1583/aa6bec ↗
30. 10.1103/PhysRevX.9.04104010.1103/PhysRevX.9.041040 ↗
31. 10.1103/PhysRevResearch.1.01201110.1103/PhysRevResearch.1.012011 ↗
32. 10.1103/PhysRevX.9.04103910.1103/PhysRevX.9.041039 ↗
33. 10.1038/s41586-019-1840-910.1038/s41586-019-1840-9 ↗
34. 10.1103/PhysRevX.9.04103810.1103/PhysRevX.9.041038 ↗
35. 10.1126/sciadv.aaw568510.1126/sciadv.aaw5685 ↗
36. 10.1088/0256-307X/36/7/07680110.1088/0256-307X/36/7/076801 ↗
37. 10.1039/c3ce40643a10.1039/c3ce40643a ↗
38. 10.1038/s41467-022-33705-y10.1038/s41467-022-33705-y ↗
39. 10.1021/acsnano.2c0815510.1021/acsnano.2c08155 ↗
40. 10.1021/acs.nanolett.1c0249310.1021/acs.nanolett.1c02493 ↗
41. 10.1038/s41467-018-03684-010.1038/s41467-018-03684-0 ↗
42. 10.1063/5.006789310.1063/5.0067893 ↗
43. 10.1063/5.002593310.1063/5.0025933 ↗
44. 10.1088/1361-648X/aba06d10.1088/1361-648X/aba06d ↗
45. 10.1103/PhysRevMaterials.4.11120110.1103/PhysRevMaterials.4.111201 ↗
46. 10.1021/acsnano.1c0393610.1021/acsnano.1c03936 ↗
47. 10.1038/s41535-022-00455-510.1038/s41535-022-00455-5 ↗
48. 10.1016/j.jcrysgro.2022.12667710.1016/j.jcrysgro.2022.126677 ↗
49. 10.1021/acsanm.2c0231410.1021/acsanm.2c02314 ↗
50. 10.1038/s41535-021-00414-610.1038/s41535-021-00414-6 ↗
51. 10.1103/PhysRevMaterials.4.12120210.1103/PhysRevMaterials.4.121202 ↗
52. 10.1002/adfm.20200651610.1002/adfm.202006516 ↗
53. 10.1021/acs.nanolett.2c0203410.1021/acs.nanolett.2c02034 ↗
54. 10.1126/science.117303410.1126/science.1173034 ↗
55. 10.1103/PhysRevB.103.L18040310.1103/PhysRevB.103.L180403 ↗
56. 10.1088/1361-648X/accd3910.1088/1361-648X/accd39 ↗
57. 10.48550/arXiv.2110.0054010.48550/arXiv.2110.00540 ↗
58. 10.1063/5.002582810.1063/5.0025828 ↗
59. 10.1021/acsnano.1c0103910.1021/acsnano.1c01039 ↗
60. 10.1007/s41365-021-00858-210.1007/s41365-021-00858-2 ↗