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Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature

Despite recent advances in exfoliated vdW ferromagnets, the widespread application of 2D magnetism requires a Curie temperature (T(c)) above room temperature as well as a stable and controllable magnetic anisotropy. Here we demonstrate a large-scale iron-based vdW material Fe(4)GeTe(2) with the T(c)...

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Autores principales: Wang, Hangtian, Lu, Haichang, Guo, Zongxia, Li, Ang, Wu, Peichen, Li, Jing, Xie, Weiran, Sun, Zhimei, Li, Peng, Damas, Héloïse, Friedel, Anna Maria, Migot, Sylvie, Ghanbaja, Jaafar, Moreau, Luc, Fagot-Revurat, Yannick, Petit-Watelot, Sébastien, Hauet, Thomas, Robertson, John, Mangin, Stéphane, Zhao, Weisheng, Nie, Tianxiao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10148834/
https://www.ncbi.nlm.nih.gov/pubmed/37120587
http://dx.doi.org/10.1038/s41467-023-37917-8
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author Wang, Hangtian
Lu, Haichang
Guo, Zongxia
Li, Ang
Wu, Peichen
Li, Jing
Xie, Weiran
Sun, Zhimei
Li, Peng
Damas, Héloïse
Friedel, Anna Maria
Migot, Sylvie
Ghanbaja, Jaafar
Moreau, Luc
Fagot-Revurat, Yannick
Petit-Watelot, Sébastien
Hauet, Thomas
Robertson, John
Mangin, Stéphane
Zhao, Weisheng
Nie, Tianxiao
author_facet Wang, Hangtian
Lu, Haichang
Guo, Zongxia
Li, Ang
Wu, Peichen
Li, Jing
Xie, Weiran
Sun, Zhimei
Li, Peng
Damas, Héloïse
Friedel, Anna Maria
Migot, Sylvie
Ghanbaja, Jaafar
Moreau, Luc
Fagot-Revurat, Yannick
Petit-Watelot, Sébastien
Hauet, Thomas
Robertson, John
Mangin, Stéphane
Zhao, Weisheng
Nie, Tianxiao
author_sort Wang, Hangtian
collection PubMed
description Despite recent advances in exfoliated vdW ferromagnets, the widespread application of 2D magnetism requires a Curie temperature (T(c)) above room temperature as well as a stable and controllable magnetic anisotropy. Here we demonstrate a large-scale iron-based vdW material Fe(4)GeTe(2) with the T(c) reaching ~530 K. We confirmed the high-temperature ferromagnetism by multiple characterizations. Theoretical calculations suggested that the interface-induced right shift of the localized states for unpaired Fe d electrons is the reason for the enhanced T(c), which was confirmed by ultraviolet photoelectron spectroscopy. Moreover, by precisely tailoring Fe concentration we achieved arbitrary control of magnetic anisotropy between out-of-plane and in-plane without inducing any phase disorders. Our finding sheds light on the high potential of Fe(4)GeTe(2) in spintronics, which may open opportunities for room-temperature application of all-vdW spintronic devices.
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spelling pubmed-101488342023-05-01 Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature Wang, Hangtian Lu, Haichang Guo, Zongxia Li, Ang Wu, Peichen Li, Jing Xie, Weiran Sun, Zhimei Li, Peng Damas, Héloïse Friedel, Anna Maria Migot, Sylvie Ghanbaja, Jaafar Moreau, Luc Fagot-Revurat, Yannick Petit-Watelot, Sébastien Hauet, Thomas Robertson, John Mangin, Stéphane Zhao, Weisheng Nie, Tianxiao Nat Commun Article Despite recent advances in exfoliated vdW ferromagnets, the widespread application of 2D magnetism requires a Curie temperature (T(c)) above room temperature as well as a stable and controllable magnetic anisotropy. Here we demonstrate a large-scale iron-based vdW material Fe(4)GeTe(2) with the T(c) reaching ~530 K. We confirmed the high-temperature ferromagnetism by multiple characterizations. Theoretical calculations suggested that the interface-induced right shift of the localized states for unpaired Fe d electrons is the reason for the enhanced T(c), which was confirmed by ultraviolet photoelectron spectroscopy. Moreover, by precisely tailoring Fe concentration we achieved arbitrary control of magnetic anisotropy between out-of-plane and in-plane without inducing any phase disorders. Our finding sheds light on the high potential of Fe(4)GeTe(2) in spintronics, which may open opportunities for room-temperature application of all-vdW spintronic devices. Nature Publishing Group UK 2023-04-29 /pmc/articles/PMC10148834/ /pubmed/37120587 http://dx.doi.org/10.1038/s41467-023-37917-8 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access 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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wang, Hangtian
Lu, Haichang
Guo, Zongxia
Li, Ang
Wu, Peichen
Li, Jing
Xie, Weiran
Sun, Zhimei
Li, Peng
Damas, Héloïse
Friedel, Anna Maria
Migot, Sylvie
Ghanbaja, Jaafar
Moreau, Luc
Fagot-Revurat, Yannick
Petit-Watelot, Sébastien
Hauet, Thomas
Robertson, John
Mangin, Stéphane
Zhao, Weisheng
Nie, Tianxiao
Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature
title Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature
title_full Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature
title_fullStr Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature
title_full_unstemmed Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature
title_short Interfacial engineering of ferromagnetism in wafer-scale van der Waals Fe(4)GeTe(2) far above room temperature
title_sort interfacial engineering of ferromagnetism in wafer-scale van der waals fe(4)gete(2) far above room temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10148834/
https://www.ncbi.nlm.nih.gov/pubmed/37120587
http://dx.doi.org/10.1038/s41467-023-37917-8
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