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

  title={Strong room-temperature ferromagnetism in VSe2 monolayers on van der Waals substrates},
  author={Manuel Bonilla and Sadhu K. Kolekar and Yujing Ma and Horacio Coy Diaz and Vijaysankar Kalappattil and Raja Das and Tatiana Eggers and Humberto Rodr{\'i}guez Guti{\'e}rrez and Manh Huong Phan and Matthias Batzill},
  journal={Nature Nanotechnology},
Reduced dimensionality and interlayer coupling in van der Waals materials gives rise to fundamentally different electronic1, optical2 and many-body quantum3–5 properties in monolayers compared with the bulk. This layer-dependence permits the discovery of novel material properties in the monolayer regime. Ferromagnetic order in two-dimensional materials is a coveted property that would allow fundamental studies of spin behaviour in low dimensions and enable new spintronics applications6–8… 

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

It is found that the itinerant ferromagnetism persists in Fe3GeTe2 down to the monolayer with an out-of-plane magnetocrystalline anisotropy, which opens up opportunities for potential voltage-controlled magnetoelectronics based on atomically thin van der Waals crystals.

Thickness-dependent and strain-tunable magnetism in two-dimensional van der Waals VSe2

Two-dimensional (2D) van der Waals (vdW) magnetic materials with reduced dimensionality often exhibit unexpected properties compared to their bulk counterparts. In particular, the mechanical

Above Room-Temperature Ferromagnetism in Wafer-Scale Two-Dimensional van der Waals Fe3GeTe2 Tailored by Topological Insulator.

The emerging two-dimensional ferromagnetic materials present atomic layer thickness and perfect interface feature, which have become an attractive research direction in the field of spintronics for

Giant coercivity in single crystal Ta3FeS6 film

Van der Waals (vdW) layered ferromagnetic materials provide a unique platform for fundamental spintronic research, and have broad application prospects in the next-generation spintronic devices. In

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

This work establishes intrinsic magnetic order at room temperature in bulk crystals through magnetization measurements and in exfoliated, thin flakes using the anomalous Hall effect and reveals Fe5GeTe2 as a prime candidate for incorporating intrinsic magnetism into functional van der Waals heterostructures and devices near room temperature.

Patterning-Induced Ferromagnetism of Fe3GeTe2 van der Waals Materials beyond Room Temperature.

A real-space imaging study of itinerant ferromagnet Fe3 GeTe2 and the enhancement of its Curie temperature well above ambient temperature finds that the magnetic long-range order in Fe3GeTe2 is characterized by an unconventional out-of-plane stripe-domain phase.

Pressure-controlled interlayer magnetism in atomically thin CrI3

Pressure-induced changes in the magnetic order of atomically thin van der Waals crystals are revealed and attributed toChanges in the stacking arrangement, which suggests a route towards nanoscale magnetic textures by moiré engineering.

Boosting the Curie Temperature of Two-Dimensional Semiconducting CrI3 Monolayer through van der Waals Heterostructures

The integration of ferromagnetic and semiconducting properties in a single two-dimensional (2D) material has been recognized as a fertile ground for fundamental science as well as for practical

The enhanced ferromagnetism of single-layer CrX3 (X = Br and I) via van der Waals engineering.

This work demonstrates that the TC and magnetic moment of CrX3 can be enhanced simultaneously by coupling them to buckled two-dimensional Mene to form magnetic van der Waals (vdW) heterostructures, and suggests that vdW engineering may be an efficient way to tune the magnetic properties of 2D magnets.

Charge Density Wave State Suppresses Ferromagnetic Ordering in VSe2 Monolayers

Ferromagnetic ordering of monolayer vanadium dichalcogenides (VSe2 and VS2) has been predicted by density functional theory (DFT), and suggestive experimental evidence for magnetic ordering in VSe2



Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit

Since the discovery of graphene, the family of two-dimensional materials has grown, displaying a broad range of electronic properties. Recent additions include semiconductors with spin–valley

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

It is concluded that Cr2Ge2Te6 is a nearly ideal two-dimensional Heisenberg ferromagnet and so will be useful for studying fundamental spin behaviours, opening the door to exploring new applications such as ultra-compact spintronics.

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

Finite range ferromagnetism and antiferromagnetism in two-dimensional (2D) systems within an isotropic Heisenberg model at non-zero temperature were originally proposed to be impossible. However,

Robust intrinsic ferromagnetism and half semiconductivity in stable two-dimensional single-layer chromium trihalides

Two-dimensional (2D) intrinsic ferromagnetic (FM) semiconductors are crucial to develop low-dimensional spintronic devices. Using density functional theory, we show that single-layer chromium

CrXTe3 (X = Si, Ge) nanosheets: two dimensional intrinsic ferromagnetic semiconductors

Two-dimensional (2D) ferromagnetic semiconductors hold a great potential for nano-electronic and spintronic devices. Nevertheless, their experimental realization remains a big challenge. Through

Room-Temperature Ferromagnetism in Two-Dimensional Fe2Si Nanosheet with Enhanced Spin-Polarization Ratio.

2D Fe2Si nanosheet, one counterpart of Hapkeite mineral discovered in meteorite with novel magnetism is proposed on the basis of first-principles calculations and has a high thermodynamic stability and its 2D lattice can be retained at the temperature up to 1200 K.

Strongly enhanced charge-density-wave order in monolayer NbSe2.

A combined optical and electrical transport study on the many-body collective-order phase diagram of NbSe2 down to a thickness of one monolayer opens up a new window for search and control of collective phases of two-dimensional matter, as well as expanding the functionalities of these materials for electronic applications.

Evidence of the existence of magnetism in pristine VX₂ monolayers (X = S, Se) and their strain-induced tunable magnetic properties.

It is proposed that the strain-dependent magnetic moment is related to the strong ionic-covalent bonds, while both the ferromagnetism and the variation in strength of magnetic coupling with strain arise from the combined effects of both through-bond and through-space interactions.

Metal-insulator transition and the anomalous Hall effect in the layered magnetic materials VS2 and VSe2

We investigated the electronic structure of the layered transition-metal dichalcogenides VS2 and VSe2 by first-principles calculations. Both compounds exhibit metal-insulator transitions when

Magnetic properties of MoS 2 : Existence of ferromagnetism

We report on the magnetic properties of MoS2 measured from room temperature down to 10 K and magnetic fields up to 5 T. We find that single crystals of MoS2 display ferromagnetism superimposed onto