4.8 Article

Giant coercivity enhancement in a room-temperature van der Waals magnet through substitutional metal-doping

Related references

Note: Only part of the references are listed.
Article Materials Science, Multidisciplinary

Tuning the room temperature ferromagnetism in Fe5GeTe2 by arsenic substitution

Andrew F. May et al.

Summary: The effect of increasing the electron count through arsenic substitution on the magnetic properties of Fe5-xGeTe2 has been investigated. Small additions of arsenic enhance ferromagnetic order, while larger concentrations decrease the ferromagnetic Curie temperature and saturation magnetization. This work also discovers a magnetic transition in Fe4.8AsTe2 and emphasizes the importance of controlling the magnetic properties in materials by fine tuning of the Fermi energy or crystal chemistry.

2D MATERIALS (2022)

Article Chemistry, Multidisciplinary

Magnetic Anisotropy Control with Curie Temperature above 400 K in a van der Waals Ferromagnet for Spintronic Device

Zeya Li et al.

Summary: This study demonstrates the control and modulation of magnetic anisotropy and Curie temperature (T-c) in layered Fe5GeTe2 using the high-pressure diamond-anvil-cell technique. Different magnetic phases with in-plane anisotropic, out-of-plane anisotropic, and nearly isotropic magnetic states are observed, with a maximum T-c up to 360 K. The T-c can be gradually increased to above 400 K due to the evolution of the Fermi surface during a pressure loading-deloading process.

ADVANCED MATERIALS (2022)

Article Physics, Multidisciplinary

Pervasive beyond Room-Temperature Ferromagnetism in a Doped van der Waals Magnet

Xiang Chen et al.

Summary: The presence of long-range magnetic order in low-dimensional magnetic systems has attracted extensive research. In this study, by substituting nickel for iron, a record high ferromagnetic ordering temperature was achieved in a quasi two-dimensional van der Waals magnet, with ferromagnetic properties observed throughout almost the entire doping range.

PHYSICAL REVIEW LETTERS (2022)

Article Multidisciplinary Sciences

Above-room-temperature strong intrinsic ferromagnetism in 2D van der Waals Fe3GaTe2 with large perpendicular magnetic anisotropy

Gaojie Zhang et al.

Summary: We report a two-dimensional intrinsic ferromagnetic crystal Fe3GaTe2 with strong ferromagnetism above room temperature and large perpendicular magnetic anisotropy. This crystal exhibits record-high Curie temperature, high saturation magnetic moment, large PMA energy density, and large anomalous Hall angle at room temperature. Room-temperature anomalous Hall devices and direct magnetic domains imaging based on Fe3GaTe2 nanosheet have been realized.

NATURE COMMUNICATIONS (2022)

Article Chemistry, Multidisciplinary

Gigantic Current Control of Coercive Field and Magnetic Memory Based on Nanometer-Thin Ferromagnetic van der Waals Fe3GeTe2

Kaixuan Zhang et al.

Summary: The research found that a small current can tune the magnetic state of van der Waals ferromagnet Fe3GeTe2, reducing the coercive field. This is possible because the current generates a highly unusual spin-orbit torque for Fe3GeTe2, and a new model of magnetic memory controlled by a tiny current is demonstrated based on this finding.

ADVANCED MATERIALS (2021)

Article Multidisciplinary Sciences

Tunable high-temperature itinerant antiferromagnetism in a van der Waals magnet

Junho Seo et al.

Summary: The discovery of tunable itinerant ferro- and antiferromagnetism in Co-doped Fe4GeTe2 utilizing vdW interlayer coupling demonstrates strong potential for metallic vdW magnets in vdW spintronic applications. These magnetic properties are sensitive to material composition, allowing for high TN antiferromagnetism in nanoflakes and tunable magnetic anisotropy. The resulting spin configurations and orientations can be effectively controlled by doping, magnetic field, and thickness, and read out through electrical conduction.

NATURE COMMUNICATIONS (2021)

Article Multidisciplinary Sciences

Unconventional Hall effect and its variation with Co-doping in van der Waals Fe3GeTe2

Rajeswari Roy Chowdhury et al.

Summary: This study investigates the effect of Co-doping on the magnetic and magnetotransport properties of Fe3GeTe2, revealing a considerable modification on the Hall effect behavior, possibly due to the underlying complex spin textures. These results provide important clues for the development of spintronic devices based on 2D vdW magnetic materials.

SCIENTIFIC REPORTS (2021)

Article Multidisciplinary Sciences

Nearly room temperature ferromagnetism in a magnetic metal-rich van der Waals metal

Junho Seo et al.

SCIENCE ADVANCES (2020)

Article Physics, Applied

Tunable magnetic properties in van der Waals crystals (Fe1-xCox)5GeTe2

Congkuan Tian et al.

APPLIED PHYSICS LETTERS (2020)

Article Multidisciplinary Sciences

Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2

Xiao Wang et al.

SCIENCE ADVANCES (2019)

Article Chemistry, Physical

Pressure-controlled interlayer magnetism in atomically thin CrI3

Tingxin Li et al.

NATURE MATERIALS (2019)

Article Chemistry, Multidisciplinary

Ferromagnetism Near Room Temperature in the Cleavable van der Waals Crystal Fe5GeTe2

Andrew F. May et al.

ACS NANO (2019)

Article Materials Science, Multidisciplinary

Domain wall pinning and hard magnetic phase in Co-doped bulk single crystalline Fe3GeTe2

Cong-Kuan Tian et al.

PHYSICAL REVIEW B (2019)

Article Chemistry, Multidisciplinary

Tunneling Spin Valves Based on Fe3GeTe2/hBN/Fe3GeTe2 van der Waals Heterostructures

Zhe Wang et al.

NANO LETTERS (2018)

Article Nanoscience & Nanotechnology

Controlling magnetism in 2D CrI3 by electrostatic doping

Shengwei Jiang et al.

NATURE NANOTECHNOLOGY (2018)

Article Nanoscience & Nanotechnology

Electrical control of 2D magnetism in bilayer CrI3

Bevin Huang et al.

NATURE NANOTECHNOLOGY (2018)

Article Nanoscience & Nanotechnology

Strong room-temperature ferromagnetism in VSe2 monolayers on van der Waals substrates

Manuel Bonilla et al.

NATURE NANOTECHNOLOGY (2018)

Article Multidisciplinary Sciences

Hard magnetic properties in nanoflake van der Waals Fe3GeTe2

Cheng Tan et al.

NATURE COMMUNICATIONS (2018)

Article Multidisciplinary Sciences

Gate-tunable room-temperature ferromagnetism in two-dimensional Fe3GeTe2

Yujun Deng et al.

NATURE (2018)

Article Materials Science, Multidisciplinary

Effect of nickel substitution on magnetism in the layered van der Waals ferromagnet Fe3GeTe2

Gil Drachuck et al.

PHYSICAL REVIEW B (2018)

Article Materials Science, Multidisciplinary

Pinning of domain walls in thin ferromagnetic films

V Jeudy et al.

PHYSICAL REVIEW B (2018)

Article Chemistry, Inorganic & Nuclear

Mixed nickel-gallium tellurides Ni3-xGaTe2 as a matrix for incorporating magnetic cations: A Ni3-xFexGaTe2 series

Alexey N. Kuznetsov et al.

JOURNAL OF SOLID STATE CHEMISTRY (2017)

Article Multidisciplinary Sciences

Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals

Cheng Gong et al.

NATURE (2017)

Article Multidisciplinary Sciences

Critical behavior of the van der Waals bonded high TC ferromagnet Fe3GeTe2

Bingjie Liu et al.

SCIENTIFIC REPORTS (2017)

Article Physics, Applied

Magnetic microstructure and magnetic properties of uniaxial itinerant ferromagnet Fe3GeTe2

N. Leon-Brito et al.

JOURNAL OF APPLIED PHYSICS (2016)

Article Materials Science, Multidisciplinary

Ultrathin nanosheets of CrSiTe3: a semiconducting two-dimensional ferromagnetic material

Ming-Wei Lin et al.

JOURNAL OF MATERIALS CHEMISTRY C (2016)

Article Chemistry, Physical

Coupling of Crystal Structure and Magnetism in the Layered, Ferromagnetic Insulator CrI3

Michael A. McGuire et al.

CHEMISTRY OF MATERIALS (2015)