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26 April 2024

» arxiv » 1509.3541

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Magnetoelectro-elastic control of magnetism in an artificial multiferroic
J. Heidler ; M. Fechner ; R. V. Chopdekar ; C. Piamonteze ; J. Dreiser ; C. A. Jenkins ; S. Rusponi ; H. Brune ; N. A. Spaldin ; F. Nolting ;
Date:	11 Sep 2015
Abstract:	We study the coexistence of strain- and charge-mediated magnetoelectric coupling in a cobalt (0-7 nm) wedge on ferroelectric [Pb(Mg$_{1/3}$/Nb$_{2/3}$)O$_{3}$]$_{0.68}$-[PbTiO$_{3}$]$_{0.32}$ (011) using surface-sensitive x-ray magnetic circular dichroism spectroscopy at the Co L$_{3,2}$ edges. Three distinct electric field driven remanent magnetization states can be set in the Co film at room temperature. Ab-initio density functional theory calculations unravel the relative contributions of both strain and charge to the observed magnetic anisotropy changes illustrating magnetoelectro-elastic coupling at artificial multiferroic interfaces.
Source:	arXiv, 1509.3541
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