Recent advances in two-dimensional intrinsic ferromagnetic materials Fe3X(X=Ge and Ga)Te2 and their heterostructures for spintronics

Chen, Xia; Zhang, Xi; Xiang, Gang

doi:10.1039/d3nr04977a

Nanoscale

2024

DOI: 10.1039/d3nr04977a

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Recent advances in two-dimensional intrinsic ferromagnetic materials Fe₃X(X=Ge and Ga)Te₂ and their heterostructures for spintronics

Xia Chen,

Xi Zhang,

Gang Xiang

Abstract: This review summarizes the spintronic properties of Fe3X(X=Ge and Ga)Te2 and their heterostructures for spintronics, providing an overview to support further studies of emergent 2D Fe3X(X=Ge and Ga)Te2 materials and related vdWHs devices.

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Cited by 3 publications

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“…In particular, Fe 3 GeTe 2 is a metal distinguished by its resilience after exfoliation and exhibits a high T c with substantial strong magnetic anisotropy, , suggesting its potential for spintronics and magnonics applications. − While bulk-phase magnetism persists up to 230 K, T c is significantly reduced in thinner layers. , To address this, several strategies have been employed, such as electron gating, intercalation, − or external pressure . Among them, increasing the Fe composition in Fe x GeTe 2 crystals has proven to be a powerful method to boost the T c , reaching up to 310 K. − …”

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confidence: 99%

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe₃GaTe₂

Ruiz,

Esteras,

López-Alcalá

et al. 2024

Nano Lett.

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2D magnetic materials have attracted growing interest driven by their unique properties and potential applications. However, the scarcity of systems exhibiting magnetism at room temperature has limited their practical implementation into functional devices. Here we focus on the van der Waals ferromagnet Fe 3 GaTe 2 , which exhibits above-room-temperature magnetism (T c = 350−380 K) and strong perpendicular anisotropy. Through first-principles calculations, we examine the magnetic properties of Fe 3 GaTe 2 and compare them with those of Fe 3 GeTe 2 . Our calculations unveil the microscopic mechanisms governing their magnetic behavior, emphasizing the pivotal role of ferromagnetic in-plane couplings in the stabilization of the elevated T c in Fe 3 GaTe 2 . Additionally, we predict the stability, substantial perpendicular anisotropy, and high T c of the single-layer Fe 3 GaTe 2 . We also demonstrate the potential of strain engineering and electrostatic doping to modulate its magnetic properties. Our results incentivize the isolation of the monolayer and pave the way for the future optimization of Fe 3 GaTe 2 in magnetic and spintronic nanodevices.

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confidence: 99%

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe₃GaTe₂

Ruiz,

Esteras,

López-Alcalá

et al. 2024

Nano Lett.

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Quantum Sensing of Room‐Temperature Ferromagnetism in 2D Van der Waals Fe₃GaTe₂ Using Divacancy Spins in SiC

Chen,

Luo,

Guo

et al. 2024

Adv Funct Materials

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Room‐temperature (RT) 2D van der Waals (vdW) ferromagnets hold immense promise for next‐generation spintronic devices for information storage and processing. To achieve high‐density energy‐efficient spintronic devices, it is essential to understand the local magnetic properties of RT 2D vdW magnets. In this work, noninvasive in situ stray field detection is realized in vdW‐layered ferromagnet Fe3GaTe2 using divacancy spins quantum sensor in silicon carbide (SiC) at RT. The structural features and magnetic properties of the Fe3GaTe2 are characterized utilizing X‐ray diffraction, scanning tsransmission electron microscopy, Raman spectrum, magnetization, and magneto‐transport measurements. Further detailed analysis of temperature‐ and magnetic field‐dependent optically detected magnetic resonances of the PL6 divacancy near the Fe3GaTe2 reveal that, the Curie temperature (Tc) of Fe3GaTe2 is ∼360 K, and the magnetization increases with external magnetic fields. Additionally, spin relaxometry technology is employed to probe the magnetic fluctuations of Fe3GaTe2, revealing a peak in the spin relaxation rate around the Tc. These experiments give insights into the intriguing local magnetic properties of 2D vdW RT ferromagnet Fe3GaTe2 and pave the way for the application of SiC quantum sensors in noninvasive in situ stray field detection of related 2D vdW magnets.

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Advanced Spintronic and Electronic Nanomaterials

Xiang,

Ren

2024

Nanomaterials

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Recent advances in two-dimensional intrinsic ferromagnetic materials Fe₃X(X=Ge and Ga)Te₂ and their heterostructures for spintronics

Abstract: This review summarizes the spintronic properties of Fe3X(X=Ge and Ga)Te2 and their heterostructures for spintronics, providing an overview to support further studies of emergent 2D Fe3X(X=Ge and Ga)Te2 materials and related vdWHs devices.

Cited by 3 publications

References 191 publications

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe₃GaTe₂

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe₃GaTe₂

Quantum Sensing of Room‐Temperature Ferromagnetism in 2D Van der Waals Fe₃GaTe₂ Using Divacancy Spins in SiC

Advanced Spintronic and Electronic Nanomaterials

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Recent advances in two-dimensional intrinsic ferromagnetic materials Fe3X(X=Ge and Ga)Te2 and their heterostructures for spintronics

Abstract: This review summarizes the spintronic properties of Fe3X(X=Ge and Ga)Te2 and their heterostructures for spintronics, providing an overview to support further studies of emergent 2D Fe3X(X=Ge and Ga)Te2 materials and related vdWHs devices.

Cited by 3 publications

References 191 publications

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe3GaTe2

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe3GaTe2

Quantum Sensing of Room‐Temperature Ferromagnetism in 2D Van der Waals Fe3GaTe2 Using Divacancy Spins in SiC

Advanced Spintronic and Electronic Nanomaterials

Contact Info

Product

Resources

About

Recent advances in two-dimensional intrinsic ferromagnetic materials Fe₃X(X=Ge and Ga)Te₂ and their heterostructures for spintronics

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe₃GaTe₂

On the Origin of the Above-Room-Temperature Magnetism in the 2D van der Waals Ferromagnet Fe₃GaTe₂

Quantum Sensing of Room‐Temperature Ferromagnetism in 2D Van der Waals Fe₃GaTe₂ Using Divacancy Spins in SiC