Publication
Article Metrics
Citations
Online attention
Electric field control of chirality
Authors:
Piush
Behera
(University of California, Berkeley; Lawrence Berkeley National Laboratory)
,
Molly A.
May
(University of Colorado)
,
Fernando
Gómez-Ortiz
(Universidad de Cantabria)
,
Sandhya
Susarla
(Lawrence Berkeley National Laboratory)
,
Sujit
Das
(University of California, Berkeley)
,
Christopher T.
Nelson
(Oak Ridge National Laboratory)
,
Lucas
Caretta
(University of California, Berkeley)
,
Shang-Lin
Hsu
(University of California, Berkeley; Lawrence Berkeley National Laboratory)
,
Margaret R.
Mccarter
(University of California, Berkeley; Lawrence Berkeley National Laboratory)
,
Benjamin H.
Savitzky
(Lawrence Berkeley National Laboratory)
,
Edward S.
Barnard
(Lawrence Berkeley National Laboratory)
,
Archana
Raja
(Lawrence Berkeley National Laboratory)
,
Zijian
Hong
(Zhejiang University)
,
Pablo
García-Fernandez
(Universidad de Cantabria)
,
Stephen W.
Lovesey
(Diamond Light Source)
,
Gerrit
Van Der Laan
(Diamond Light Source)
,
Peter
Ercius
(Lawrence Berkeley National Laboratory)
,
Colin
Ophus
(Lawrence Berkeley National Laboratory)
,
Lane W.
Martin
(University of California, Berkeley; Lawrence Berkeley National Laboratory)
,
Javier
Junquera
(Universidad de Cantabri)
,
Markus B.
Raschke
(University of Colorado)
,
Ramamoorthy
Ramesh
(University of California, Berkeley; Lawrence Berkeley National Laboratory)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Science Advances
, VOL 8
State:
Published (Approved)
Published:
January 2022

Abstract: Polar textures have attracted substantial attention in recent years as a promising analog to spin-based textures in ferromagnets. Here, using optical second-harmonic generation–based circular dichroism, we demonstrate deterministic and reversible control of chirality over mesoscale regions in ferroelectric vortices using an applied electric field. The microscopic origins of the chirality, the pathway during the switching, and the mechanism for electric field control are described theoretically via phase-field modeling and second-principles simulations, and experimentally by examination of the microscopic response of the vortices under an applied field. The emergence of chirality from the combination of nonchiral materials and subsequent control of the handedness with an electric field has far-reaching implications for new electronics based on chirality as a field-controllable order parameter.
Diamond Keywords: Ferroelectricity
Subject Areas:
Materials,
Physics
Facility: National Center for Electron Microscopy at Lawrence Berkeley National Laboratory
Added On:
10/01/2022 11:20
Documents:
sciadv.abj8030.pdf
Discipline Tags:
Quantum Materials
Physics
Materials Science
Technical Tags: