scholarly journals A monoclinic-tetragonal ferroelectric phase transition in lead-free (K0.5Na0.5)NbO3-x%LiNbO3 solid solution

2012 ◽  
Vol 111 (10) ◽  
pp. 103503 ◽  
Author(s):  
Wenwei Ge ◽  
Yang Ren ◽  
Jialiang Zhang ◽  
Christopher P. Devreugd ◽  
Jiefang Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Lead Free

Study of ferroelectric phase transition in new lead free Ba(Ca1/3Nb2/3)O3 compound

2017 ◽  
Vol 518 (1) ◽  
pp. 73-84
Author(s):  
M. Pastor ◽  
Patri Tirupathi ◽  
Nawnit Kumar ◽  
Amrish K. Panwar ◽  
M. Chopkar ◽  
...  
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Lead Free

Dielectric and ferroelectric behavior of an incipient ferroelectric Sr(1−3x/2)CexTiO3 novel solid solution

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91679-91688 ◽  
Author(s):  
Burhan Ullah ◽  
Wen Lei ◽  
Xiao-Hong Wang ◽  
Gui-Fen Fan ◽  
Xiao-Chuan Wang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Dielectric Properties ◽  
Phase Formation ◽  
Ferroelectric Phase Transition ◽  
Chemical Structure ◽  
Ferroelectric Phase ◽  
Phase Transition Behavior ◽  
Ferroelectric Behavior ◽  
Transition Behavior

Phase formation, chemical structure, microwave (MW) dielectric properties, and relaxor-to-ferroelectric phase transition behavior of a novel Sr(1−3x/2)CexTiO3 solid solution ceramic sintered in nitrogen have been investigated.

Origin of the first-order ferroelectric phase transition in K 0.957 Li 0.043 TaO 3 solid solution

2016 ◽  
Vol 84 ◽  
pp. 298-302 ◽  
Author(s):  
Zbigniew Trybuła ◽  
Jan Dec ◽  
Seweryn Miga ◽  
Szymon Łoś ◽  
Małgorzata Trybuła
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
First Order

scholarly journals Phonons and relaxations in unfilled tetragonal tungsten-bronzes

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
E. Buixaderas ◽  
J. Dec
Keyword(s):  
Phase Transition ◽  
High Frequency ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Lead Free ◽  
Qualitative Behaviour ◽  
Characteristic Frequencies ◽  
Slowing Down ◽  
Central Mode ◽  
Thz Range

The lead-free unfilled tetragonal tungsten-bronzes SBN and CBN are investigated by Raman, infrared and high-frequency dielectric spectroscopies. The substitution in the different channels affects phonons as well as relaxations. Relaxations in SBN show similar qualitative behaviour on increasing Sr content and relaxor behaviour, but for the extreme relaxor samples all characteristic frequencies are higher with stronger contribution to the permittivity in the GHz-THz range is stronger. The presence of a soft anharmonic central mode in the THz range together with the slowing down of a relaxation from GHz to MHz ranges reveals the coexistence of displacive and order-disorder scenarios for the ferroelectric phase transition in this family.

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