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|Title:||Phase-controllable growth of ultrathin 2D magnetic FeTe crystals||Authors:||Kang, Lixing
Das, Chandreyee Manas
Pennycook, Stephen J.
Wang, Renshaw Xiao
|Keywords:||Engineering::Materials||Issue Date:||2020||Source:||Kang, L., Ye, C., Zhao, X., Zhou, X., Hu, J., Li, Q., ... Liu, Z. (2020). Phase-controllable growth of ultrathin 2D magnetic FeTe crystals. Nature Communications, 11(1), 1-9. doi:10.1038/s41467-020-17253-x||Project:||NRF-CRP21-2018-0007
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|Journal:||Nature Communications||Abstract:||Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronic devices. However, the direct growth of their crystals is in its infancy. Here we report a chemical vapor deposition approach to controllably grow layered tetragonal and non-layered hexagonal FeTe nanoplates with their thicknesses down to 3.6 and 2.8 nm, respectively. Moreover, transport measurements reveal these obtained FeTe nanoflakes show a thickness-dependent magnetic transition. Antiferromagnetic tetragonal FeTe with the Néel temperature (TN) gradually decreases from 70 to 45 K as the thickness declines from 32 to 5 nm. And ferromagnetic hexagonal FeTe is accompanied by a drop of the Curie temperature (TC) from 220 K (30 nm) to 170 K (4 nm). Theoretical calculations indicate that the ferromagnetic order in hexagonal FeTe is originated from its concomitant lattice distortion and Stoner instability. This study highlights its potential applications in future spintronic devices.||URI:||https://hdl.handle.net/10356/146747||ISSN:||2041-1723||DOI:||10.1038/s41467-020-17253-x||Rights:||© 2020 The Authors. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||MSE Journal Articles|
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