What Has Been Achieved:
Succeeded in providing the origins of electronic bands in the antiferromagnetic topological insulator MnBi2Te4.
Importance of the Achievement:
Offer a solid step forward in reconciling the existing controversies in the electronic structure of MnBi2Te4 and provides an important framework to understand the electronic structures of other relevant topological materials MnBi2nTe3n+1.
Unique Feature(s) of the MIP that Enabled this Achievement:
Synthesis of high-quality MnBi2Te4 crystals is extremely challenging due to the disorders caused by its non-stoichiometry composition. The 2DCC has developed a protocol to grow MnBi2Te4 single crystals with good quality. The collaboration between the user, the 2DCC synthesis and theory teams enables this work.
Publication:
Chenhui Yan , Sebastian Fernandez-Mulligan, Ruobing Mei, Seng Huat Lee, Nikola Protic, Rikuto Fukumori, Binghai Yan, Chaoxing Liu, Zhiqiang Mao, and Shuolong Yang, Physical Review B 104, L041102 (2021). DOI: 10.1103/PhysRevB.104.L041102
The financial support for sample preparation was provided by the National Science Foundation through the Penn State 2D Crystal Consortium-Materials Innovation Platform (2DCCMIP) under NSF cooperative agreement DMR-1539916. C. X. L. and R. B. M. acknowledge the support of the US Department of Energy (Grant No. DESC0019064) for the development of the theoretical model.
Credits/Names: C. Yan, S. Fernandez-Mulligan, N. Protic, R. Fukumori, and S. Yang (University of Chicago); B. Yan (Weizmann Institute of Science); R. Mei, S. H. Lee, C.-X. Liu, and Z. Q. Mao (2DCC, Penn State)
Download PDF Version: 1539916_2DCCMIP_2021_Origins of electronic bands in the antiferromagnetic topological insulator MnBi2Te4.pdf
Year of Research Highlight: 2021
Select a Highlight Type: User Highlight