scholarly journals Synthesis of Ba1−xLnxFeO3−δ and BaFe1−xLnxO3−δ (Ln: lanthanoid or Y) with cubic perovskite structures and disordered oxide ion vacancies: Effect of ionic radius on substitution site and crystal structure

2020 ◽  
Vol 128 (11) ◽  
pp. 898-905
Author(s):  
Yunosuke MATSUMOTO ◽  
Takashi OKIBA ◽  
Reito IWABUCHI ◽  
Shogo SHIMIZU ◽  
Masaki KITADUME ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Ionic Radius ◽  
Substitution Site ◽  
Oxide Ion

The dependence of polymorphism on the ionic radius of Ln3+ (LnLaEr, Y) in the oxide ion conductors Bi0.775Ln0.225O1.5

1993 ◽  
Vol 67 (1-2) ◽  
pp. 25-28 ◽  
Author(s):  
A WATANABE ◽  
M DRACHE ◽  
J WIGNACOURT ◽  
P CONFLANT ◽  
J BOIVIN
Keyword(s):  
Ionic Radius ◽  
Oxide Ion Conductors ◽  
Oxide Ion ◽  
Ion Conductors

scholarly journals Crystal Structure of (Ba1-xLax)2In2O5+x and Its Oxide Ion Conductivity

2000 ◽  
Vol 68 (6) ◽  
pp. 531-533 ◽  
Author(s):  
Yoshiharu UCHIMOTO ◽  
Takeshi YAO ◽  
Hiromitsu TAKAGI ◽  
Toru INAGAKI ◽  
Hiroyuki YOSHIDA
Keyword(s):  
Crystal Structure ◽  
Ion Conductivity ◽  
Oxide Ion Conductivity ◽  
Oxide Ion

A first Mn member in the struvite morphotropic series, CsMn(H2O)6(PO4): hydrothermal synthesis, crystal structure and interconnections within the family of related phosphates

2018 ◽  
Vol 74 (8) ◽  
pp. 936-943
Author(s):  
Galina V. Kiriukhina ◽  
Olga V. Yakubovich ◽  
Ekaterina M. Kochetkova ◽  
Olga V. Dimitrova ◽  
Anatoliy S. Volkov
Keyword(s):  
Crystal Structure ◽  
Ionic Radius ◽  
The Novel ◽  
X Ray Diffraction ◽  
Unit Cell Parameters ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Cell Parameters ◽  
Structural Relationships ◽  
The Family

Caesium manganese hexahydrate phosphate, CsMn(H2O)6(PO4), was synthesized under hydrothermal conditions. Its crystal structure was determined from single-crystal X-ray diffraction data. The novel phase crystallizes in the hexagonal space group P63 mc and represents the first manganese member in the struvite morphotropic series, AM(H2O)6(TO4). Its crystal structure is built from Mn(H2O)6 octahedra and PO4 tetrahedra linked into a framework via hydrogen bonding. The large Cs atoms are encapsulated in the framework cuboctahedral cavities. It is shown that the size of the A + ionic radius within the morphotropic series AM(H2O)6(XO4) results is certain types of crystal structures and affects the values of the unit-cell parameters. Structural relationships with Na(H2O)Mg(H2O)6(PO4) and the mineral hazenite, KNa(H2O)2Mg2(H2O)12(PO4)2, are discussed.

scholarly journals The crystal structure and electrical properties of the oxide ion conductor Ba3WNbO8.5

2018 ◽  
Vol 6 (13) ◽  
pp. 5290-5295 ◽  
Author(s):  
K. S. McCombie ◽  
E. J. Wildman ◽  
S. Fop ◽  
R. I. Smith ◽  
J. M. S. Skakle ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electrical Properties ◽  
The Novel ◽  
Ion Conductor ◽  
Oxide Ion Conductor ◽  
Oxide Ion

The crystal structure of the novel oxide ion conductor Ba3WNbO8.5.

The Crystal Structure of α-La2Mo2O9and the Structural Origin of the Oxide Ion Migration Pathway

2005 ◽  
Vol 17 (16) ◽  
pp. 4074-4077 ◽  
Author(s):  
Ivana Radosavljevic Evans ◽  
Judith A. K. Howard ◽  
John S. O. Evans
Keyword(s):  
Crystal Structure ◽  
Ion Migration ◽  
Migration Pathway ◽  
Oxide Ion

Doping effect on crystal structure and conduction property of fast oxide ion conductor LaGaO3-based perovskite

2007 ◽  
Vol 68 (5-6) ◽  
pp. 758-764 ◽  
Author(s):  
Masahiro Kajitani ◽  
Motohide Matsuda ◽  
Akinori Hoshikawa ◽  
Stefanus Harjo ◽  
Takashi Kamiyama ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Doping Effect ◽  
Ion Conductor ◽  
Oxide Ion Conductor ◽  
Conduction Property ◽  
Oxide Ion

Correlation between Ionic Radius of Substituting Element and Magnetic Properties of Bi1-xAxFeO3-x/2 (A= Ca, Sr, Pb, Ba) Multiferroics

2009 ◽  
Vol 152-153 ◽  
pp. 131-134 ◽  
Author(s):  
V.A. Khomchenko ◽  
Michael Kopcewicz ◽  
Armandina M. Lima Lopes ◽  
Yuri G. Pogorelov ◽  
J.P. Araujo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Spin Structure ◽  
Ionic Radius ◽  
Oxygen Vacancies ◽  
Magnetic State ◽  
Weak Ferromagnetism ◽  
Host Lattice ◽  
A Site ◽  
Spiral Spin

Investigation of crystal structure and magnetic properties of the diamagnetically- substituted Bi1-xAxFeO3-x/2 (A= Ca, Sr, Pb, Ba; x= 0.2, 0.3) polycrystalline samples has been carried out. It has been shown that the heterovalent A2+ substitution result in the formation of oxygen vacancies in the host lattice. The solid solutions have been found to possess a rhombohedrally distorted perovskite structure described by the space group R3c. Magnetization measurements have shown that the magnetic state of these compounds is determined by the ionic radius of the substituting elements. A-site substitution with the biggest ionic radius ions has been found to suppress the spiral spin structure of BiFeO3 giving rise to the appearance of weak ferromagnetism.

Crystal Structure and Oxide-Ion Diffusion of Nanocrystalline, Compositionally Homogeneous Ceria–Zirconia Ce0.5Zr0.5O2up to 1176 K

2012 ◽  
Vol 13 (2) ◽  
pp. 829-837 ◽  
Author(s):  
Masatomo Yashima ◽  
Tomohiro Sekikawa ◽  
Daisuke Sato ◽  
Hiromi Nakano ◽  
Kazuki Omoto
Keyword(s):  
Crystal Structure ◽  
Ion Diffusion ◽  
Oxide Ion
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