%0 Journal Article
%T Quantitative Imaging of Exotic Antiferromagnetic Spin Cycloids in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:msub><mml:mrow><mml:mi>Bi</mml:mi><mml:mi>Fe</mml:mi><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:math> Thin Films
%+ Laboratoire Charles Coulomb (L2C)
%+ Laboratoire Albert Fert (ex-UMPhy Unité mixte de physique CNRS/Thales)
%A Zhong, Hai
%A Finco, Aurore
%A Fischer, Johanna
%A Haykal, Angela
%A Bouzehouane, Karim
%A Carrétéro, Cécile
%A Godel, Florian
%A Maletinsky, Patrick
%A Munsch, Mathieu
%A Fusil, Stéphane
%A Jacques, Vincent
%A Garcia, V
%< avec comité de lecture
%@ 2331-7019
%J Physical Review Applied
%I American Physical Society
%V 17
%8 2022-04-26
%D 2022
%R 10.1103/physrevapplied.17.044051
%Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles
%X BiFeO3 is a rich room-temperature multiferroic material in which noncollinear antiferromagnetic spin cycloids can be deterministically controlled by an electric field through the magnetoelectric interaction, opening perspectives for low-power reconfigurable antiferromagnetic spintronics. Using a commercial scanning nitrogen-vacancy (N-V) magnetometer, we are able to image two different types of spin cycloids stabilized in strain-engineered BiFeO3 epitaxial thin films. We show that, in these samples harboring two ferroelectric variants, each ferroelectric domain is coupled to a single spin cycloid, giving rise to a zigzag magnetic pattern. These ferroelectric domains can be manipulated at the local scale by piezoresponse force microscopy, allowing the design of micron-sized single domains. Thanks to its coupled optical microscope and fast-imaging capabilities, the scanning N-V magnetometer enables a quick repositioning in such areas of interest. Finally, quantitative imaging on single ferroelectric domains provides insights into the physical parameters of each spin-cycloid type and their impact on the magnetic-stray-field measurements.
%G English
%2 https://hal.science/hal-03656679/document
%2 https://hal.science/hal-03656679/file/Zhong_Phys%20Rev%20Appl_2022.pdf
%L hal-03656679
%U https://hal.science/hal-03656679
%~ CNRS
%~ L2C
%~ UNIV-PARIS-SACLAY
%~ UNIV-MONTPELLIER
%~ CNRS-UPSACLAY
%~ UNIVERSITE-PARIS-SACLAY
%~ ANR
%~ GS-ENGINEERING
%~ GS-PHYSIQUE
%~ UM-2015-2021
%~ UM-EPE
%~ UMPHY
%~ LAF