|
| | | | |
| | | |
| Stat |
Members: 3669
Articles: 2'599'751
Articles rated: 2609
22 March 2025 |
|
| | | | |
|
Article overview
| |
|
|
Nonvolatile Electric-Field Control of Inversion Symmetry | | Lucas Caretta
; Yu-Tsun Shao
; Jia Yu
; Antonio B. Mei
; Bastien F. Grosso
; Cheng Dai
; Piush Behera
; Daehun Lee
; Margaret McCarter
; Eric Parsonnet
; Harikrishnan K.P.
; Fei Xue
; Ed Barnard
; Steffen Ganschow
; Archana Raja
; Lane W. Martin
; Long-Qing Chen
; Manfred Fiebig
; Keji Lai
; Nicola A. Spaldin
; David A. Muller
; Darrell G. Schlom
; Ramamoorthy Ramesh
; | | Date: |
2 Jan 2022 | | Abstract: | In condensed-matter systems, competition between ground states at phase
boundaries can lead to significant changes in material properties under
external stimuli, particularly when these ground states have different crystal
symmetries. A key scientific and technological challenge is to stabilize and
control coexistence of symmetry-distinct phases with external stimuli. Using
BiFeO3 (BFO) layers confined between layers of the dielectric TbScO3 as a model
system, we stabilize the mixed-phase coexistence of centrosymmetric and
non-centrosymmetric BFO phases with antipolar, insulating and polar,
semiconducting behavior, respectively at room temperature. Application of
in-plane electric (polar) fields can both remove and introduce centrosymmetry
from the system resulting in reversible, nonvolatile interconversion between
the two phases. This interconversion between the centrosymmetric insulating and
non-centrosymmetric semiconducting phases coincides with simultaneous changes
in the non-linear optical response of over three orders of magnitude, a change
in resistivity of over five orders of magnitude, and a change in the polar
order. Our work establishes a materials platform allowing for novel
cross-functional devices which take advantage of changes in optical,
electrical, and ferroic responses. | | Source: | arXiv, 2201.00289 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|
REGISTER