scholarly journals Polarization retention on short, intermediate, and long time scales in ferroelectric thin films

2009 ◽  
Vol 105 (9) ◽  
pp. 094107 ◽  
Author(s):  
X. J. Lou
Keyword(s):  
Thin Films ◽  
Time Scales ◽  
Ferroelectric Thin Films ◽  
Long Time ◽  
Polarization Retention

scholarly journals Nanoscale Investigation of Polarization Retention Loss in Ferroelectric Thin Films VIA Scanning Force Microscopy

1997 ◽  
Vol 493 ◽  
Author(s):  
A. Gruverman ◽  
S. A. Prakash ◽  
S. Aggarwal ◽  
R. Ramesh ◽  
O. Auciello ◽  
...  
Keyword(s):  
Thin Films ◽  
Domain Switching ◽  
Scanning Force Microscopy ◽  
Ferroelectric Thin Films ◽  
Time Intervals ◽  
Force Microscopy ◽  
Retention Loss ◽  
Scanning Force ◽  
Local Polarization ◽  
Polarization Retention

ABSTRACTScanning force microscopy (SFM) was applied to direct nanoscale investigation of the mechanism of retention loss in ferroelectric thin films. Experiments were conducted by performing local polarization reversal within an individual grain with subsequent imaging of a resulting domain structure at various time intervals. A conductive SFM tip was used for domain switching and imaging in the SFM piezoresponse mode.

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

The Spread of Pollutants from Harbour Sludge Depots

1984 ◽  
Vol 16 (3-4) ◽  
pp. 623-633
Author(s):  
M Loxham ◽  
F Weststrate
Keyword(s):  
Time Scales ◽  
Molecular Diffusion ◽  
Near Field ◽  
Parameter Analysis ◽  
Migration Patterns ◽  
Long Time ◽  
Dilution Effects ◽  
Short Time ◽  
Harbour Sludge

It is generally agreed that both the landfill option, or the civil techniques option for the final disposal of contaminated harbour sludge involves the isolation of the sludge from the environment. For short time scales, engineered barriers such as a bentonite screen, plastic sheets, pumping strategies etc. can be used. However for long time scales the effectiveness of such measures cannot be counted upon. It is thus necessary to be able to predict the long term environmenttal spread of contaminants from a mature landfill. A model is presented that considers diffusion and adsorption in the landfill site and convection and adsorption in the underlaying aquifer. From a parameter analysis starting form practical values it is shown that the adsorption behaviour and the molecular diffusion coefficient of the sludge, are the key parameters involved in the near field. The dilution effects of the far field migration patterns are also illustrated.

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