Critical scaling analysis for displacive-type organic ferroelectrics around ferroelectric transition

2017 ◽  
Vol 471 ◽  
pp. 818-824 ◽  
Author(s):  
L.J. Ding
Keyword(s):  
Scaling Analysis ◽  
Critical Scaling ◽  
Ferroelectric Transition ◽  
Organic Ferroelectrics ◽  
Displacive Type

Enhanced electrocaloric effect in displacive-type organic ferroelectrics

2015 ◽  
Vol 118 (5) ◽  
pp. 054105 ◽  
Author(s):  
L. J. Ding ◽  
Y. Zhong ◽  
S. W. Fan ◽  
L. Y. Zhu
Keyword(s):  
Electrocaloric Effect ◽  
Organic Ferroelectrics ◽  
Displacive Type

Critical scaling analysis of the itinerant ferromagnetSr1−xCaxRuO3

2014 ◽  
Vol 89 (17) ◽  
Author(s):  
D. Fuchs ◽  
M. Wissinger ◽  
J. Schmalian ◽  
C.-L. Huang ◽  
R. Fromknecht ◽  
...  
Keyword(s):  
Scaling Analysis ◽  
Critical Scaling

Critical Scaling Analysis of Transport Characteristics before and after Heavy-Ion Irradiation in a YBa2Cu3O7-δ Thin Film

1999 ◽  
pp. 593-596
Author(s):  
Tetsuro Sueyoshi ◽  
Norito Ishikawa ◽  
Akihiro Iwase ◽  
Yasuhiro Chimi ◽  
Takanobu Kiss ◽  
...  
Keyword(s):  
Thin Film ◽  
Ion Irradiation ◽  
Heavy Ion ◽  
Scaling Analysis ◽  
Critical Scaling ◽  
Heavy Ion Irradiation ◽  
Before And After

Local atomic structure of relaxor ferroelectric solids studied by pulsed neutron scattering

1994 ◽  
Vol 52 ◽  
pp. 554-555
Author(s):  
T. Egami ◽  
H. D. Rosenfeld ◽  
S. Teslic
Keyword(s):  
Neutron Scattering ◽  
Atomic Structure ◽  
Argonne National Laboratory ◽  
Relaxor Ferroelectrics ◽  
Relaxor Ferroelectric ◽  
Crystallographic Structure ◽  
Chemical Inhomogeneity ◽  
Distribution Analysis ◽  
Ferroelectric Transition ◽  
Pulsed Neutron

Relaxor ferroelectrics, such as Pb(Mg1/3Nb2/3)O3 (PMN) or (Pb·88La ·12)(Zr·65Ti·35)O3 (PLZT), show diffuse ferroelectric transition which depends upon frequency of the a.c. field. In spite of their wide use in various applications details of their atomic structure and the mechanism of relaxor ferroelectric transition are not sufficiently understood. While their crystallographic structure is cubic perovskite, ABO3, their thermal factors (apparent amplitude of thermal vibration) is quite large, suggesting local displacive disorder due to heterovalent ion mixing. Electron microscopy suggests nano-scale structural as well as chemical inhomogeneity.We have studied the atomic structure of these solids by pulsed neutron scattering using the atomic pair-distribution analysis. The measurements were made at the Intense Pulsed Neutron Source (IPNS) of Argonne National Laboratory. Pulsed neutrons are produced by a pulsed proton beam accelerated to 750 MeV hitting a uranium target at a rate of 30 Hz. Even after moderation by a liquid methane moderator high flux of epithermal neutrons with energies ranging up to few eV’s remain.

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