Bulletin of the American Physical Society
APS March Meeting 2018
Volume 63, Number 1
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session K42: Simulating Magnetization Switching Across Multiple Time and Length Scales
8:00 AM–11:00 AM,
Wednesday, March 7, 2018
LACC
Room: 502B
Sponsoring
Units:
DCOMP DCMP GMAG
Chair: David Cahill, University of Illinois at Urbana–Champaign
Abstract ID: BAPS.2018.MAR.K42.3
Abstract: K42.00003 : Magnetophononics: ultrafast spin control through the lattice*
9:12 AM–9:48 AM
View Presentation
Abstract
Presenter:
Michael Fechner
(Max Planck Institute for the Structure and Dynamics of Matter)
Author:
Michael Fechner
(Max Planck Institute for the Structure and Dynamics of Matter)
I first will discuss the coherent modulation of the electric polarisation, which creates a magnetization even in materials with no existing spin structure [2]. This transient state of broken space and partiy odd symmetry is multiferroic and comprises unexpected outcomes like a phonon Zeeman effect and magnon excitation [3]. As a second example, I show how the phonon excitation and its related structural distortion modulates magnetic exchange interactions. For the specific case of Cr2O3, the right tuning of induced deformations [4] allows modulating the magnetic spin arrangement, which generates a new magnetic state. I will also speculate about where the field is going and provide my own perspectives.
[1] M. Först, et al., Nature Phys. 7, 854 (2011).
[2] D. M. Juraschek, et al., Phys. Rev. Mat. 1, 014401 (2017).
[3] T. F. Nova, et al. , Nature Phys. 13, 132 (2016).
[4] M. Fechner, et al., arXiv 1707.03216, (2017).
*ERC Grant Agreement no. 319286 (Q-MAC)
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.K42.3
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