Topochemical Synthesis of Perovskite-type CuNb2O6 with Colossal Dielectric Constant

2021 ◽  
Author(s):  
Masayuki Fukuda ◽  
Ikuya Yamada ◽  
Hajime Hojo ◽  
Chihiro Takahashi ◽  
Yuya Yoshida ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
High Pressure ◽  
Structural Transformation ◽  
High Pressure Synthesis ◽  
Synthesis Techniques ◽  
Post Annealing ◽  
Pressure Synthesis ◽  
Colossal Dielectric Constant ◽  
A Site ◽  
Perovskite Type

A novel A-site deficient quadruple perovskite (Pv) oxide, CuNb2O6, has been successfully obtained by a combination of high-pressure synthesis techniques and topochemical structural transformation. Post-annealing of a high-pressure-synthesized Pv-CuNbO3 above...

scholarly journals High-Pressure Synthesis, Crystal Structures, and Properties of A-Site Columnar-Ordered Quadruple Perovskites NaRMn2Ti4O12 with R = Sm, Eu, Gd, Dy, Ho, Y

2020 ◽  
Vol 59 (13) ◽  
pp. 9065-9076
Author(s):  
Ran Liu ◽  
Rebecca Scatena ◽  
Dmitry D. Khalyavin ◽  
Roger D. Johnson ◽  
Yoshiyuki Inaguma ◽  
...  
Keyword(s):  
High Pressure ◽  
Crystal Structures ◽  
High Pressure Synthesis ◽  
Structures And Properties ◽  
Pressure Synthesis ◽  
A Site

scholarly journals High-pressure synthesis and physical properties of A-site ordered perovskites

2014 ◽  
Vol 70 (a1) ◽  
pp. C755-C755
Author(s):  
Youwen Long
Keyword(s):  
High Pressure ◽  
Transition Metal ◽  
Physical Properties ◽  
Colossal Magnetoresistance ◽  
Research Work ◽  
Negative Thermal Expansion ◽  
Transition Metal Ions ◽  
High Pressure Synthesis ◽  
Pressure Synthesis ◽  
A Site

ABO3-type perovskite oxides exhibit a wide variety of interesting physical properties such as superconductivity, colossal magnetoresistance, multiferroic behavior etc. For a simple ABO3 perovskite, if three quarters of the A site is replaced by a transition metal A', then the so-called A-site ordered double perovskite with the chemical formula of AA'3B4O12 can form. Since both A' and B sites accommodate transition metal ions, in addition to conventional B-B interaction, the new A'-A' and/or A'-B interaction is possible to show up, giving rise to the presence of many novel physical properties. Here we will show our recent research work on the high-pressure synthesis of several A-site ordered perovskites as well as a series of interesting physical properties like temperature- and pressure-induced intermetallic charge transfer, negative thermal expansion, magnetoelectric coupling multiferroic and so on. [1-3]

Multicomponent A-site ordered perovskite BiMn3(Fe0.25Ti0.75)4O12: High-pressure synthesis, crystal chemistry and magnetic behavior

2016 ◽  
Vol 234-235 ◽  
pp. 40-44 ◽  
Author(s):  
Gen Shimura ◽  
Ken Niwa ◽  
Yuichi Shirako ◽  
Shunsuke Muto ◽  
Keiji Kusaba ◽  
...  
Keyword(s):  
High Pressure ◽  
Crystal Chemistry ◽  
Magnetic Behavior ◽  
High Pressure Synthesis ◽  
Pressure Synthesis ◽  
A Site

Hochdrucksynthese und Strukturverfeinerung von SrVO3, Sr2VO4 und Sr3V2O7 / High-Pressure Synthesis and Structure Refinement of SrVO3, Sr2VO4, and Sr3V2O7

1991 ◽  
Vol 46 (10) ◽  
pp. 1315-1318 ◽  
Author(s):  
Klaus-Jürgen Range ◽  
Franz Rau ◽  
Ulrich Klement
Keyword(s):  
High Pressure ◽  
Single Crystals ◽  
Crystal Structures ◽  
Structure Refinement ◽  
Type I ◽  
High Pressure Synthesis ◽  
Pressure Synthesis ◽  
Perovskite Type ◽  
Type Apparatus

Single crystals of SrVO3, Sr2VO4 and Sr3V2O7 have been obtained by high-pressure reactions in a modified belt-type apparatus. The crystal structures, refined from diffractometer data, are as follows: SrVO3, perovskite type, Pm3̄m, a = 3.8408(3) Å, R = 0.017, Rw = 0.018, composition from occupancy refinement of oxygen positions SrVO2.93(2); Sr2VO4, K2NiF4 type, I 4/mmm, a = 3.837(1), c = 12.569(1) Å, R = 0.014, Rw = 0.017; Sr3V2O7, Sr3Ti2O7 type, I 4/mmm, a = 3.839(1), c = 20.262(2) Å, R = 0.020, Rw = 0.029.

High-pressure synthesis and ferroelectric properties in perovskite-type BiScO3–PbTiO3 solid solution

2004 ◽  
Vol 95 (1) ◽  
pp. 231-235 ◽  
Author(s):  
Yoshiyuki Inaguma ◽  
Atsushi Miyaguchi ◽  
Masashi Yoshida ◽  
Tetsuhiro Katsumata ◽  
Yoshiro Shimojo ◽  
...  
Keyword(s):  
Solid Solution ◽  
High Pressure ◽  
Ferroelectric Properties ◽  
High Pressure Synthesis ◽  
Pressure Synthesis ◽  
Perovskite Type

scholarly journals High-Pressure Synthesis, Structures, and Properties of Trivalent A-Site-Ordered Quadruple Perovskites RMn7O12 (R = Sm, Eu, Gd, and Tb)

2018 ◽  
Vol 57 (10) ◽  
pp. 5987-5998 ◽  
Author(s):  
Lei Zhang ◽  
Noriki Terada ◽  
Roger D. Johnson ◽  
Dmitry D. Khalyavin ◽  
Pascal Manuel ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Synthesis ◽  
Structures And Properties ◽  
Pressure Synthesis ◽  
A Site
Sign in / Sign up

Export Citation Format

Share Document