Real-Time Studies of Strains at Ferroelectric Domain Walls under an Applied Field

2002 ◽  
Author(s):  
Terrence Jach
2004 ◽  
Vol 69 (6) ◽  
Author(s):  
Terrence Jach ◽  
Sungwon Kim ◽  
Venkatraman Gopalan ◽  
Stephen Durbin ◽  
David Bright

2006 ◽  
Vol 966 ◽  
Author(s):  
Volkmar Dierolf ◽  
Pavel Capek ◽  
Christian Sandmann

ABSTRACTWe studied ferroelectric domain wall regions in lithium niobate using the photoluminescence of intentionally doped rare earth ions (such as Er3+) as well as Raman spectroscopy and present an overview of the current status of our ongoing investigations. We find that the Er emission is a sensitive tool to observe changes in local electric fields as well as reconfiguration of defect dipoles across the domain wall. The Raman spectra, on the other hand can be used to identify charges that accumulate asymmetrically across a domain wall. We further demonstrate that the imaging methods offer sufficient sensitivity to observe the changes associated with a domain in real time while it is moving.


2015 ◽  
Vol 107 (15) ◽  
pp. 152905 ◽  
Author(s):  
T. Kämpfe ◽  
P. Reichenbach ◽  
A. Haußmann ◽  
T. Woike ◽  
E. Soergel ◽  
...  

Author(s):  
Xiao Zhang

Electron holography has recently been available to modern electron microscopy labs with the development of field emission electron microscopes. The unique advantage of recording both amplitude and phase of the object wave makes electron holography a effective tool to study electron optical phase objects. The visibility of the phase shifts of the object wave makes it possible to directly image the distributions of an electric or a magnetic field at high resolution. This work presents preliminary results of first high resolution imaging of ferroelectric domain walls by electron holography in BaTiO3 and quantitative measurements of electrostatic field distribution across domain walls.


Nano Letters ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 959-966
Author(s):  
Pedro Soubelet ◽  
Julian Klein ◽  
Jakob Wierzbowski ◽  
Riccardo Silvioli ◽  
Florian Sigger ◽  
...  

2017 ◽  
Vol 25 (22) ◽  
pp. 27818 ◽  
Author(s):  
Ji Yang ◽  
Xiaohui Zhao ◽  
Haigang Liu ◽  
Xianfeng Chen

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Naëmi Leo ◽  
Anders Bergman ◽  
Andres Cano ◽  
Narayan Poudel ◽  
Bernd Lorenz ◽  
...  

2021 ◽  
Author(s):  
Jing Wang ◽  
Jing Ma ◽  
Houbing Huang ◽  
Ji Ma ◽  
Hasnain Jafri ◽  
...  

Abstract The electronic conductivities of ferroelectric domain walls have been extensively explored over the past decade for potential nanoelectronic applications. However, the realization of logic devices based on ferroelectric domain walls requires reliable and flexible control of the domain-wall configuration and conduction path. Here, we demonstrate electric-field-controlled stable and repeatable on-and-off switching of conductive domain walls within topologically confined vertex domains naturally formed in self-assembled ferroelectric nano-islands. Using a combination of piezoresponse force microscopy, conductive atomic force microscopy, and phase-field simulations, we show that on-off switching is accomplished through reversible transformations between charged and neutral domain walls via electric-field-controlled domain-wall reconfiguration. By analogy to logic processing, we propose programmable logic gates (such as NOT, OR, AND and their derivatives) and logic circuits (such as fan-out) based on reconfigurable conductive domain walls. Our work provides a potentially viable platform for programmable all-electric logic based on a ferroelectric domain-wall network with low energy consumption.


2020 ◽  
Vol 102 (8) ◽  
Author(s):  
Sabine Körbel ◽  
Stefano Sanvito

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