Intrinsic 2D-XY ferromagnetism in a van der Waals monolayer-Reference-Cited by-同舟云学术

Intrinsic 2D-XY ferromagnetism in a van der Waals monolayer

Published:2021-10-29 Issue:6567 Volume:374 Page:616-620
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Bedoya-Pinto Amilcar¹^ORCID,Ji Jing-Rong¹^ORCID,Pandeya Avanindra K.¹^ORCID,Gargiani Pierluigi²^ORCID,Valvidares Manuel²^ORCID,Sessi Paolo¹^ORCID,Taylor James M.³^ORCID,Radu Florin³^ORCID,Chang Kai¹^ORCID,Parkin Stuart S. P.¹^ORCID

Affiliation:

1. NISE Department, Max Planck Institute of Microstructure Physics, Halle, Germany.

2. ALBA Synchrotron Light Source, Barcelona, Spain.

3. Helmholtz-Zentrum für Materialien und Energie, Berlin, Germany.

Abstract

Taking the measure of a magnet The recent discovery of magnetism in two-dimensional (2D) materials has inspired efforts to understand its nature. Whereas the magnetism of monolayers of chromium iodide (CrI 3 ) can be understood in terms of out-of-plane magnetic anisotropy, the related material chromium chloride (CrCl 3 ) has spins that lie in the plane. Bedoya-Pinto et al . used molecular beam epitaxy to grow monolayers of CrCl 3 on graphene and studied its magnetic properties. Using x-ray magnetic circular dichroism measurements, the authors found that monolayer CrCl 3 is a ferromagnet, unlike bulk CrCl 3 , which is antiferromagnetic. The scaling of the signal in the critical region indicated that the material belongs to the 2D-XY universality class, distinct from Ising magnetism, which some other 2D magnets exhibit. —JS

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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