scholarly journals Disentangling ferroelectric domain wall geometries and pathways in dynamic piezoresponse force microscopy via unsupervised machine learning

2021 ◽  
Author(s):  
Sergei V Kalinin ◽  
James Steffes ◽  
Yongtao Liu ◽  
Bryan Huey ◽  
Maxim Ziatdinov
Keyword(s):  
Machine Learning ◽  
Domain Wall ◽  
Piezoresponse Force Microscopy ◽  
Ferroelectric Domain ◽  
Unsupervised Machine Learning ◽  
Force Microscopy

Ferroelectric domain-wall logic units

2021 ◽  
Author(s):  
Jing Wang ◽  
Jing Ma ◽  
Houbing Huang ◽  
Ji Ma ◽  
Hasnain Jafri ◽  
...  
Keyword(s):  
Domain Wall ◽  
Electric Field ◽  
Domain Walls ◽  
Logic Gates ◽  
Piezoresponse Force Microscopy ◽  
Ferroelectric Domain ◽  
Conduction Path ◽  
Conductive Atomic Force Microscopy ◽  
Flexible Control ◽  
Force Microscopy

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.

Three-dimensional ferroelectric domain imaging of epitaxial BiFeO3 thin films using angle-resolved piezoresponse force microscopy

2010 ◽  
Vol 97 (11) ◽  
pp. 112907 ◽  
Author(s):  
Moonkyu Park ◽  
Seungbum Hong ◽  
Jeffrey A. Klug ◽  
Michael J. Bedzyk ◽  
Orlando Auciello ◽  
...  
Keyword(s):  
Thin Films ◽  
Three Dimensional ◽  
Piezoresponse Force Microscopy ◽  
Ferroelectric Domain ◽  
Force Microscopy ◽  
Bifeo3 Thin Films

Ferroelectric Domain Pattern of Pb(Mg1/3Nb2/3)O3-33%PbTiO3 Measured by Using Piezoresponse Force Microscopy

2011 ◽  
Vol 59 (3(1)) ◽  
pp. 2546-2550 ◽  
Author(s):  
Yoon H Jeong ◽  
S.-H. Lee ◽  
E. J. Lee ◽  
I. K. Yang ◽  
M. H. Jung ◽  
...  
Keyword(s):  
Piezoresponse Force Microscopy ◽  
Ferroelectric Domain ◽  
Domain Pattern ◽  
Force Microscopy

scholarly journals Structure and Dynamics of Ferroelectric Domains in Polycrystalline Pb(Fe1/2Nb1/2)O3

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1327 ◽  
Author(s):  
Ursic ◽  
Bencan ◽  
Prah ◽  
Dragomir ◽  
Malic
Keyword(s):  
Domain Wall ◽  
Ambient Temperature ◽  
Domain Structure ◽  
Domain Walls ◽  
Domain Switching ◽  
Piezoresponse Force Microscopy ◽  
Paraelectric Phase Transition ◽  
Force Microscopy ◽  
Ferroelectric Domains

A complex domain structure with variations in the morphology is observed at ambient temperature in monoclinic Pb(Fe1/2Nb1/2)O3. Using electron microscopy and piezoresponse force microscopy, it is possible to reveal micrometre-sized wedge, lamellar-like, and irregularly shaped domains. By increasing the temperature, the domain structure persists up to 80 °C, and then starts to disappear at around 100 °C due to the proximity of the ferroelectric–paraelectric phase transition, in agreement with macroscopic dielectric measurements. In order to understand to what degree domain switching can occur in the ceramic, the mobility of the domain walls was studied at ambient temperature. The in situ poling experiment performed using piezoresponse force microscopy resulted in an almost perfectly poled area, providing evidence that all types of domains can be easily switched. By poling half an area with 20 V and the other half with −20 V, two domains separated by a straight domain wall were created, indicating that Pb(Fe1/2Nb1/2)O3 is a promising material for domain-wall engineering.

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