%0 Journal Article
%T Real-space imaging of non-collinear antiferromagnetic order with a single-spin magnetometer
%+ Laboratoire Charles Coulomb (L2C)
%+ Laboratoire Aimé Cotton (LAC)
%+ Laboratoire Albert Fert (ex-UMPhy Unité mixte de physique CNRS/Thales)
%+ Université de Bâle = University of Basel = Basel Universität (Unibas)
%+ Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N)
%+ Laboratoire Nano-Magnétisme et Oxydes (LNO)
%+ Synchrotron SOLEIL (SSOLEIL)
%A Gross, Isabell
%A Akhtar, W.
%A Garcia, V.
%A Martinez, L. J.
%A Chouaieb, Saddem
%A Garcia, K.
%A Carretero, C.
%A Barthélémy, A.
%A Appel, P.
%A Maletinsky, P.
%A Kim, J. -V.
%A Chauleau, J. Y.
%A Jaouen, N.
%A Viret, M.
%A Bibes, M.
%A Fusil, S.
%A Jacques, Vincent
%< avec comité de lecture
%Z L2C:17-147
%@ 0028-0836
%J Nature
%I Nature Publishing Group
%V 549
%N 7671
%P 252-256
%8 2017-09-14
%D 2017
%R 10.1038/nature23656
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X Although ferromagnets have many applications, their large magnetization and the resulting energy cost for switching magnetic moments bring into question their suitability for reliable low-power spintronic devices. Non-collinear antiferromagnetic systems do not suffer from this problem, and often have extra functionalities: non-collinear spin order may break space- inversion symmetry and thus allow electric-field control of magnetism or may produce emergent spin–orbit effects that enable efficient spin–charge interconversion. To harness these traits for next-generation spintronics, the nanoscale control and imaging capabilities that are now routine for ferromagnets must be developed for antiferromagnetic systems. Here, using a non-invasive, scanning single-spin magnetometer based on a nitrogen–vacancy defect in diamond, we demonstrate real- space visualization of non-collinear antiferromagnetic order in a magnetic thin film at room temperature. We image the spin cycloid of a multiferroic bismuth ferrite (BiFeO3) thin film and extract a period of about 70 nanometres, consistent with values determined by macroscopic diffraction. In addition, we take advantage of the magnetoelectric coupling present in BiFeO$_3$ to manipulate the cycloid propagation direction by an electric field. Besides highlighting the potential of nitrogen–vacancy magnetometry for imaging complex antiferromagnetic orders at the nanoscale, these results demonstrate how BiFeO$_3$ can be used in the design of reconfigurable nanoscale spin textures.
%G English
%2 https://hal.science/hal-01632358/document
%2 https://hal.science/hal-01632358/file/Gross_BFO_Final.pdf
%L hal-01632358
%U https://hal.science/hal-01632358
%~ CEA
%~ CNRS
%~ UNIV-PSUD
%~ ENS-CACHAN
%~ OPENAIRE
%~ L2C
%~ IRAMIS-SPEC
%~ CEA-UPSAY
%~ UNIV-PARIS-SACLAY
%~ UNIV-PSUD-SACLAY
%~ CEA-UPSAY-SACLAY
%~ ENS-CACHAN-SACLAY
%~ SYNCHROTRON-SOLEIL
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UP-SCIENCES
%~ TEST-HALCNRS
%~ CNRS-UPSACLAY
%~ ANR
%~ ENS-PARIS-SACLAY
%~ GS-ENGINEERING
%~ IRAMIS
%~ GS-PHYSIQUE
%~ INSTITUT-SCIENCES-LUMIERE
%~ UM-2015-2021
%~ AIME-COTTON
%~ C2N
%~ UMPHY
%~ LAF