Hard magnetic properties in nanoflake van der Waals Fe3GeTe2

Tan, C, Lee, J, Jung, S, Park, T, Albarakati, S, Partridge, J, Field, M, McCulloch, D, Wang, L and Lee, C 2018, 'Hard magnetic properties in nanoflake van der Waals Fe3GeTe2', Nature Communications, vol. 9, no. 1, pp. 1-7.

Document type: Journal Article
Collection: Journal Articles

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Title Hard magnetic properties in nanoflake van der Waals Fe3GeTe2
Author(s) Tan, C
Lee, J
Jung, S
Park, T
Albarakati, S
Partridge, J
Field, M
McCulloch, D
Wang, L
Lee, C
Year 2018
Journal name Nature Communications
Volume number 9
Issue number 1
Start page 1
End page 7
Total pages 7
Publisher Nature Publishing Group
Abstract Two-dimensional van der Waals materials have demonstrated fascinating optical and electrical characteristics. However, reports on magnetic properties and spintronic applications of van der Waals materials are scarce by comparison. Here, we report anomalous Hall effect measurements on single crystalline metallic Fe 3 GeTe 2 nanoflakes with different thicknesses. These nanoflakes exhibit a single hard magnetic phase with a near square-shaped magnetic loop, large coercivity (up to 550 mT at 2 K), a Curie temperature near 200 K and strong perpendicular magnetic anisotropy. Using criticality analysis, the coupling length between van der Waals atomic layers in Fe 3 GeTe 2 is estimated to be ~5 van der Waals layers. Furthermore, the hard magnetic behaviour of Fe 3 GeTe 2 can be well described by a proposed model. The magnetic properties of Fe 3 GeTe 2 highlight its potential for integration into van der Waals magnetic heterostructures, paving the way for spintronic research and applications based on these devices.
Subject Nanomaterials
DOI - identifier 10.1038/s41467-018-04018-w
Copyright notice © 2018 The Author(s) 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. To view a copy of this license, visit: http://creativecommons.org/licenses/by/4.0/
ISSN 2041-1723
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