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Magnetism in two-dimensional van der Waals materials.

TLDR
These cleavable materials provide the ideal platform for exploring magnetism in the two-dimensional limit, where new physical phenomena are expected, and represent a substantial shift in the authors' ability to control and investigate nanoscale phases.
Abstract
The discovery of materials has often introduced new physical paradigms and enabled the development of novel devices. Two-dimensional magnetism, which is associated with strong intrinsic spin fluctuations, has long been the focus of fundamental questions in condensed matter physics regarding our understanding and control of new phases. Here we discuss magnetic van der Waals materials: two-dimensional atomic crystals that contain magnetic elements and thus exhibit intrinsic magnetic properties. These cleavable materials provide the ideal platform for exploring magnetism in the two-dimensional limit, where new physical phenomena are expected, and represent a substantial shift in our ability to control and investigate nanoscale phases. We present the theoretical background and motivation for investigating this class of crystals, describe the material landscape and the current experimental status of measurement techniques as well as devices, and discuss promising future directions for the study of magnetic van der Waals materials.

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Citations
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Skyrmion dynamics in moir\'e magnets

TL;DR: In this article , a twisted magnetic bilayer subject to the perpendicular electric field is considered and the interplay of induced Dzyaloshinskii - Moriya interaction and spatially varying moir\'e exchange potential results in complex non-collinear magnetic phases in these structures.

Observation of enhanced spin-spin correlations at triple point in 2D ferromagnetic Cr2X2Te6 (X=Si, Ge)

TL;DR: In this article , the spin-spin correlation of 2D ferromagnets was investigated by a composite magnetoelectric method, which revealed that the spin spin correlations in Cr 2 Si 2 Te 6 are stronger than that in C 2 Ge 2 Te6 .
Journal ArticleDOI

Anisotropic Magnetoresistance and Planar Hall Effect in Layered Room-Temperature Ferromagnet Cr1.2Te2

TL;DR: In this paper , the effects of PHE and AMR at room temperature in the layered ferromagnet of Cr1.2Te2 flakes were investigated and shown to have a 4-fold AMR effect, resulting from the material's high-term lattice symmetry.

Rashba spin-orbit coupling enhanced magnetoresistance in junctions with one ferromagnet

TL;DR: In this paper , the spin-dependent Andreev reflection at superconducting interfaces has been investigated in a two-dimensional electron gas (2DEG) and in a conventional $s$-wave superconductor (Fe 0.29}$TaS$_2$/NbN).
Journal ArticleDOI

Frustration-induced magnetic bimerons in transition metal halide CoX2 (X = Cl, Br) monolayers

TL;DR: In this paper , the authors predict that the centrosymmetric transition metal halide CoX2 (X = Cl, Br) monolayers can be promising candidates for observing the frustration-induced bimerons.
References
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Van der Waals heterostructures

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Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models

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Journal ArticleDOI

Unconventional superconductivity in magic-angle graphene superlattices

TL;DR: The realization of intrinsic unconventional superconductivity is reported—which cannot be explained by weak electron–phonon interactions—in a two-dimensional superlattice created by stacking two sheets of graphene that are twisted relative to each other by a small angle.
Journal ArticleDOI

Crystal statistics. I. A two-dimensional model with an order-disorder transition

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