scholarly journals Diffuse phase transition and thermal hysteresis in relaxor ferroelectrics from modified Ising odel

2021 ◽  
Vol 70 (11) ◽  
pp. 110501-110501
Author(s):  
Huang Jian-Bang ◽  
◽  
Nan Hu ◽  
Zhang Feng ◽  
Zhang Jia-Le ◽  
...  
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Thermal Hysteresis ◽  
Relaxor Ferroelectrics ◽  
Diffuse Phase

Mechanism of Diffuse Phase Transition in Relaxor Ferroelectrics

1994 ◽  
Vol 33 (Part 1, No. 4A) ◽  
pp. 1959-1964 ◽  
Author(s):  
Takaaki Tsurumi ◽  
Kouji Soejima ◽  
Toshio Kamiya ◽  
Masaki Daimon
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Relaxor Ferroelectrics ◽  
Diffuse Phase

A multi-Debye relaxation model for relaxor ferroelectrics showing diffuse phase transition

2005 ◽  
Vol 242 (9) ◽  
pp. 1864-1867 ◽  
Author(s):  
A. Peláiz-Barranco ◽  
O. García-Zaldívar ◽  
F. Calderón-Piñar ◽  
R. López-Noda ◽  
J. Fuentes Betancourt
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Relaxor Ferroelectrics ◽  
Relaxation Model ◽  
Debye Relaxation ◽  
Diffuse Phase

Enhanced diffuse phase transition and defect mechanism of Na-doped Pb(Mg1/3Nb2/3)O3 relaxor ferroelectrics

1997 ◽  
Vol 12 (6) ◽  
pp. 1614-1624 ◽  
Author(s):  
Kyu-Mann Lee ◽  
Hyun M. Jang
Keyword(s):  
Phase Transition ◽  
Electrical Conductivity ◽  
Diffuse Phase Transition ◽  
Short Range ◽  
Oxygen Vacancies ◽  
Superlattice Reflection ◽  
Relaxor Ferroelectrics ◽  
Defect Mechanism ◽  
Defect Process ◽  
Diffuse Phase

The diffuse phase transition (DPT) characteristics and the associated defect mechanism of Na-doped Pb(Mg1/3Nb2/3)O3 (PMN) relaxor perovskite were studied. The enhanced DPT and the decrease in the intensity of the superlattice reflection were observed in the presence of Na2O. These contradictory observations were interpreted in terms of the inhibition of the growth of the 1 : 1 nonstoichiometric short-range ordered domains and the increase in the microcompositional fluctuation of the B-site cations caused by the formation of negatively charged Na′Mg sites. The mechanism of the associated defect process was then elucidated by analyzing the electrical conductivity as a function of the oxygen partial pressure. It was shown that the substitution of Na+ ions for Mg2+ ions in the B-site sublattice of perovskite PMN produced the negatively charged sites with a concomitant generation of oxygen vacancies () for the ionic compensation. This expedites the enhancement of the compositional inhomogeneities of the B-site cations and suppresses the growth of the nonstoichiometrically ordered nanodomains in a disordered matrix.

Diffuse phase transition in Ba5YTi3−xZrxNb7O30 ferroelectrics

2002 ◽  
Vol 74 (2) ◽  
pp. 113-120 ◽  
Author(s):  
N.K. Singh ◽  
R.N.P. Choudhary ◽  
A. Panigrahi
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Diffuse Phase

PmC6. Giant electrostriction of ferroelectrics with diffuse phase transition - physics and applications

1992 ◽  
Vol 134 (1) ◽  
pp. 139-144 ◽  
Author(s):  
V. V. Lemanov ◽  
N. K. Yushin ◽  
E. P. Smirnova ◽  
A. V. Sotnikov ◽  
E. A. Tarakanov ◽  
...  
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Diffuse Phase
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