scholarly journals Ca-Doping of BiFeO3: The Role of Strain in Determining Coupling between Ferroelectric Displacements, Magnetic Moments, Octahedral Tilting, and Oxygen-Vacancy Ordering

2013 ◽  
Vol 25 (21) ◽  
pp. 4436-4446 ◽  
Author(s):  
Jason A. Schiemer ◽  
Ray L. Withers ◽  
Yun Liu ◽  
Michael A. Carpenter
Keyword(s):  
Oxygen Vacancy ◽  
Magnetic Moments ◽  
Ca Doping ◽  
Vacancy Ordering ◽  
Octahedral Tilting

Local Oxygen-Vacancy Ordering and Twinned Octahedral Tilting Pattern in the Bi0.81Pb0.19FeO2.905 Cubic Perovskite

2012 ◽  
Vol 24 (7) ◽  
pp. 1378-1385 ◽  
Author(s):  
Walid Dachraoui ◽  
Joke Hadermann ◽  
Artem M. Abakumov ◽  
Alexander A. Tsirlin ◽  
Dmitry Batuk ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Vacancy Ordering ◽  
Octahedral Tilting ◽  
Local Oxygen

Oxygen vacancy ordering in CaTiO3–CaFeO2.5 perovskites: From isolated defects to infinite sheets

1999 ◽  
Vol 69 (1) ◽  
pp. 133-146 ◽  
Author(s):  
A. I. Becerro ◽  
C. McCammon ◽  
F. Langenhorst ◽  
F. Seifert ◽  
R. Angel
Keyword(s):  
Oxygen Vacancy ◽  
Vacancy Ordering

The role of π-bonding on the high temperature structure of the double perovskites Ba2CaUO6and BaSrCaUO6

2015 ◽  
Vol 44 (36) ◽  
pp. 16036-16044 ◽  
Author(s):  
Emily Reynolds ◽  
Gordon J. Thorogood ◽  
Maxim Avdeev ◽  
Helen E. A. Brand ◽  
Qinfen Gu ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Neutron Diffraction ◽  
Temperature Structure ◽  
Double Perovskites ◽  
Phase Transition Behavior ◽  
X Ray ◽  
Progressive Loss ◽  
Octahedral Tilting

High temperature synchrotron X-ray and neutron diffraction powder diffraction studies of the uranium perovskites Ba2CaUO6and BaSrCaUO6reveal unusual phase transition behavior associated with the progressive loss of cooperative octahedral tilting.

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