Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session E02: Dielectric & Ferroic Oxides -- Optically Induced Properties and Optical Measurements
8:00 AM–11:00 AM,
Tuesday, March 5, 2019
BCEC
Room: 107A
Sponsoring
Units:
DMP DCOMP
Chair: Dennis Meier
Abstract: E02.00003 : Reversible optical control of multiferroicity in BiFeO3 thin films
8:24 AM–8:36 AM
Presenter:
Jan-Chi Yang
(National Cheng Kung University, Tainan 70101, Taiwan)
Authors:
Yi-De Liou
(National Cheng Kung University, Tainan 70101, Taiwan)
Yen-Lin Huang
(National Chiao Tung University, Hsinchu 30010, Taiwan)
Ryan Thomas Hart
(University of Texas at Arlington, Arlington, TX 76019, USA)
Yuan-Chih Wu
(National Cheng Kung University, Tainan 70101, Taiwan)
Rajesh V Chopdekar
(Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA)
Valanoor Nagarajan
(University of New South Wales, Sydney, 2052, Australia)
Ying-Hao Chu
(National Chiao Tung University, Hsinchu 30010, Taiwan)
Yi-Chun Chen
(National Cheng Kung University, Tainan 70101, Taiwan)
Ye Cao
(University of Texas at Arlington, Arlington, TX 76019, USA)
Jan-Chi Yang
(National Cheng Kung University, Tainan 70101, Taiwan)
With well-tuned laser illumination, the local temperature of illuminated region increases, resulting in a significant flexoelectric field at the boundaries of illuminate and non-illuminated region. The induced flexoelectric field is then adopted to modulate the local ferroelectricity of BiFeO3 thin film, generating a wide spectrum of tunable domain structures. To verify the role of flexoelectric effect, phase field simulation is processed to simulate the correlation between the as-grown and light induced domain architecture. Due to the fact that BiFeO3 thin film has its ferroelectricity coupled strongly with inherent antiferromagnetism/ferromagnetism, the optical modulation of ferroelectric order gives rise to corresponding alteration of the antiferromagnetism/ferromagnetism as well. Furthermore, we show that the domain conductivity and piezoresponse enhancement could also be turned on and off via laser illumination.
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