Two-dimensional Ferromagnetic Materials for Spintronics: From Fundamental to Applications
A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".
Deadline for manuscript submissions: 20 October 2024 | Viewed by 37
Special Issue Editors
Interests: spin phenomena in two-dimensional molecular framework
Special Issue Information
Dear Colleagues,
Two-dimensional (2D) ferromagnetic materials have garnered significant interest regarding their application in next-generation spintronic devices, e.g., spin valve, magnetic random-access memory, and giant magneto-resistance. Proposed by the Mermin−Wagner theorem, the presence of magneto-anisotropy can bridge the gap concerning low-energy modes and effectively suppress thermal fluctuations in the 2D regime, thus stabilizing long-range magnetic orders down to a single-layer limit. A variety of van der Waals (vdW) materials with intriguing magnetic properties, such as Fe3GeTe2, Cr2Ge2Te6, CrI3, and CrTe2, have been discovered in recent years. For instance, room-temperature ferromagnetism and strong perpendicular magnetic anisotropy (PMA) have been found in the 1T-CrTe2 film. However, 2D ferromagnetic materials often suffer from poor air stability and a degraded Curie temperature (Tc) with the thinning of thickness. On the other hand, by intercalating additional Cr atoms between CrTe2 layers, such as Cr1−xTe, CrTe, Cr2Te3, and Cr5Te8 films, nonlayered stoichiometric compounds not only exhibit good stability but also have a nontrivial magnetic structure and abundant transport properties. In particular, different intercalating Cr ordering in CrTe2 backbones and structural distortions can tune ferromagnetic coupling strengths, thus leading to phase-dependent long-range ferromagnetic order. Nevertheless, the development of robust and air-stable 2D ferromagnets that promote Tc above 310 K remains challenging.
This Special Issue, entitled “Two-dimensional Ferromagnetic Materials for Spintronics: From Fundamental to Applications”, aims to present a range of fundamental and applied research associated with two-dimensional (2D) ferromagnetic materials for spintronics application.
Prof. Dr. Minghu Pan
Prof. Dr. Qingyu Xu
Guest Editors
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Keywords
- molecular beam epitaxial, the chemical vapor deposition (CVD) method
- van der Waals heterostructure, 2D ferromagnetism, proximity coupling, magnetic anisotropy
- transition metal dichalcogenides: Fe3GeTe2, Cr2Ge2Te6, CrI3, and CrTe2, etc.
