Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session X04: Dielectric & Ferroic Oxides -- Structure & Functionality of Ferroic Domain Walls
8:00 AM–10:48 AM,
Friday, March 8, 2019
BCEC
Room: 107C
Sponsoring
Units:
DMP DCOMP
Chair: Javier Junquera, University of Cantabria
Abstract: X04.00004 : Towards adaptable nano-circuitry - functional domain walls and disorder engineering in improper ferroelectrics
8:36 AM–9:12 AM
Presenter:
Donald M. Evans
(Materials Science and Engineering, Norwegian University of Science and Technology - NTNU)
Authors:
Dennis Meier
(Materials Science and Engineering, Norwegian University of Science and Technology - NTNU)
Donald M. Evans
(Materials Science and Engineering, Norwegian University of Science and Technology - NTNU)
In my talk, I will discuss how improper ferroelectric domain walls can be used to emulate key electronic components. In the first part, I will address domain walls in ErMnO3. The system naturally develops all fundamental types of ferroelectric domain walls, including neutral as well as negatively and positively charged wall configurations. I will show how the electronic domain-wall properties can be controlled and discuss the possibility to use such walls for designing, e.g., 2D digital switches and half-wave rectifiers [1]. In the second part, I will consider domain walls in spin-spiral multiferroics with strong magnetoelectric couplings and additional functionality that arises from the interplay of charge and spin degrees of freedom. Because of the coupling, it is possible to reversibly control the configuration at ferroelectric domain walls by magnetic fields, switching between nominally charged and neutral domain wall states [2,3]. Furthermore, I will present an innovative approach for controlling conductivity and wiring up domain-wall-based devices with nanoscale spatial resolution, bringing us an important step closer to adaptable all-domain-wall circuitry for next-generation nanotechnology.
[1] J. Schaab, et al., Nature Nano. DOI:10.1038/s41565-018-0253-5 (2018)
[2] N. Leo, et al., Nature Commun. 6, 6661 (2015)
[3] M. Matsubara, et al., Science 348, 1112 (2015)
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700