Thickness-Dependent Domain Relaxation Dynamics Study in Epitaxial K0.5Na0.5NbO3 Ferroelectric Thin Films

2021 ◽  
Author(s):  
Soumen Pradhan ◽  
Martando Rath ◽  
Adrian David ◽  
Deepak Kumar ◽  
Wilfrid Prellier ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferroelectric Thin Films ◽  
Relaxation Dynamics ◽  
Dependent Domain

Nanoscale Phenomena in Synthetic Functional Oxide Heterostructures

2002 ◽  
Vol 8 (4) ◽  
pp. 333-349 ◽  
Author(s):  
V. Nagarajan ◽  
C.S. Ganpule ◽  
A. Stanishevsky ◽  
B.T. Liu ◽  
R. Ramesh
Keyword(s):  
Thin Films ◽  
Lead Zirconate Titanate ◽  
Domain Walls ◽  
Three Dimensional ◽  
Polarization Vector ◽  
Scanning Force Microscopy ◽  
Lead Zirconate ◽  
Quantitative Information ◽  
Ferroelectric Thin Films ◽  
Relaxation Dynamics

This paper reviews nanoscale phenomena such as polarization relaxation dynamics and piezoelectric characterization in model ferroelectric thin films and nanostructures using voltage-modulated scanning force microscopy. Using this technique we show the three-dimensional reconstruction of the polarization vector in lead zirconate titanate (PZT) thin films. Second, the time-dependent relaxation of remanent polarization in epitaxial PZT ferroelectric thin films, containing a uniform two-dimensional grid of 90° domains (c-axis in the plane of the film), has been investigated extensively. The 90° domain walls preferentially nucleate the 180° reverse domains during relaxation. Relaxation occurs through the nucleation and growth of reverse 180° domains, which subsequently coalesce and consume the entire region as a function of relaxation time. In addition we also present results on investigation of the relaxation phenomenon on a very local scale, where pinning and bowing of domain walls has been observed. We also show how this technique is used for obtaining quantitative information on piezoelectric constants and by engineering special structures, and how we realize ultrahigh values of piezoconstants. Last, we also show direct hysteresis measurements on nanoscale capacitors, where there is no observable loss of polarization in capacitors as small as 0.16 μm2 in area.

SrBi2Nb2O9 ferroelectric thin films

1998 ◽  
Vol 08 (PR9) ◽  
pp. Pr9-225-Pr9-228
Author(s):  
J. H. Yi ◽  
P. Thomas ◽  
M. Manier ◽  
J. P. Mercurio ◽  
I. Jauberteau ◽  
...  
Keyword(s):  
Thin Films ◽  
Ferroelectric Thin Films

SrBi2Nb2O9 ferroelectric thin films deposited by pulsed laser deposition on textured and epitaxied platinum electrodes

2001 ◽  
Vol 11 (PR11) ◽  
pp. Pr11-133-Pr11-137
Author(s):  
J. R. Duclère ◽  
M. Guilloux-Viry ◽  
A. Perrin ◽  
A. Dauscher ◽  
S. Weber ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Ferroelectric Thin Films ◽  
Laser Deposition ◽  
Platinum Electrodes

scholarly journals Local control of defects and switching properties in ferroelectric thin films

2018 ◽  
Vol 2 (8) ◽  
Author(s):  
Sahar Saremi ◽  
Ruijuan Xu ◽  
Frances I. Allen ◽  
Joshua Maher ◽  
Joshua C. Agar ◽  
...  
Keyword(s):  
Thin Films ◽  
Local Control ◽  
Ferroelectric Thin Films
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