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Recent advances in two-dimensional ferromagnetism: materials synthesis, physical properties and device applications

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Abstract

Two-dimensional (2D) ferromagnetism is critical for both scientific investigation and technological development owing to its low-dimensionality that brings in quantization of electronic states as well as free axes for device modulation. However, the scarcity of high-temperature 2D ferromagnets has been the obstacle of many research studies, such as the quantum anomalous Hall effect (QAHE) and thin-film spintronics. Indeed, in the case of the isotropic Heisenberg model with finite-range exchange interactions as an example, low-dimensionality is shown to be contraindicated with ferromagnetism. However, the advantages of low-dimensionality for micro-scale patterning could enhance the Curie temperature (TC) of 2D ferromagnets beyond the TC of bulk materials, opening the door for designing high-temperature ferromagnets in the 2D limit. In this paper, we review the recent advances in the field of 2D ferromagnets, including their material systems, physical properties, and potential device applications.

Graphical abstract: Recent advances in two-dimensional ferromagnetism: materials synthesis, physical properties and device applications

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Article information


Submitted
17 Oct 2019
Accepted
15 Dec 2019
First published
16 Dec 2019

Nanoscale, 2020, Advance Article
Article type
Minireview

Recent advances in two-dimensional ferromagnetism: materials synthesis, physical properties and device applications

P. Huang, P. Zhang, S. Xu, H. Wang, X. Zhang and H. Zhang, Nanoscale, 2020, Advance Article , DOI: 10.1039/C9NR08890C

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