Relaxor Ferroelectrics - from Random Field Models to Glassy Relaxation and Domain States

Polar Oxides ◽  
2005 ◽  
pp. 275-301 ◽  
Author(s):  
Wolfgang Kleemann ◽  
George A. Samara ◽  
Jan Dec
Keyword(s):  
Random Field ◽  
Relaxor Ferroelectrics

Comparison of random field strengths in (1-x)SrTiO3-xBiFeO3 and (1-x)SrTiO3-xBaTiO3 relaxor ferroelectrics by means of acoustic emission

2020 ◽  
Vol 92 (2) ◽  
pp. 20401
Author(s):  
Evgeniy Dul'kin ◽  
Michael Roth
Keyword(s):  
Acoustic Emission ◽  
Random Field ◽  
Electric Fields ◽  
Bias Field ◽  
Relaxor Ferroelectrics ◽  
External Bias ◽  
Field Strengths

In relaxor (1-x)SrTiO3-xBiFeO3 ferroelectrics ceramics (x = 0.2, 0.3 and 0.4) both intermediate temperatures and Burns temperatures were successfully detected and their behavior were investigated in dependence on an external bias field using an acoustic emission. All these temperatures exhibit a non-trivial behavior, i.e. attain the minima at some threshold fields as a bias field enhances. It is established that the threshold fields decrease as x increases in (1-x)SrTiO3-xBiFeO3, as it previously observed in (1-x)SrTiO3-xBaTiO3 (E. Dul'kin, J. Zhai, M. Roth, Phys. Status Solidi B 252, 2079 (2015)). Based on the data of the threshold fields the mechanisms of arising of random electric fields are discussed and their strengths are compared in both these relaxor ferroelectrics.

Uniaxial relaxor ferroelectrics: The ferroic random-field Ising model materialized at last

2002 ◽  
Vol 57 (1) ◽  
pp. 14-19 ◽  
Author(s):  
W Kleemann ◽  
J Dec ◽  
P Lehnen ◽  
R Blinc ◽  
B Zalar ◽  
...  
Keyword(s):  
Ising Model ◽  
Random Field ◽  
Relaxor Ferroelectrics ◽  
Random Field Ising Model

Random field based theory of the relaxor ferroelectrics

2000 ◽  
Vol 236 (1) ◽  
pp. 209-221 ◽  
Author(s):  
V. A. Stephanovich
Keyword(s):  
Random Field ◽  
Relaxor Ferroelectrics

Relaxor ferroelectrics in the random field theory framework

1997 ◽  
Vol 199 (1) ◽  
pp. 11-24 ◽  
Author(s):  
M. D. Glinchuk ◽  
R. Farhi ◽  
V. A. Stephanovich
Keyword(s):  
Field Theory ◽  
Random Field ◽  
Relaxor Ferroelectrics ◽  
Random Field Theory ◽  
Theory Framework

NMR and the spherical random bond–random field model of relaxor ferroelectrics

2000 ◽  
Vol 61 (2) ◽  
pp. 177-183 ◽  
Author(s):  
R Blinc ◽  
J Dolinšek ◽  
A Gregorovič ◽  
B Zalar ◽  
C Filipič ◽  
...  
Keyword(s):  
Random Field ◽  
Field Model ◽  
Relaxor Ferroelectrics ◽  
Random Field Model
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