Post‐Perovskite Phase Transition in the Pyrolitic Lowermost Mantle: Implications for Ubiquitous Occurrence of Post‐Perovskite Above CMB

2021 ◽  
Author(s):  
Yasuhiro Kuwayama ◽  
Kei Hirose ◽  
Laura Cobden ◽  
Mayu Kusakabe ◽  
Shigehiko Tateno ◽  
...  
Keyword(s):  
Phase Transition ◽  
Perovskite Phase ◽  
Lowermost Mantle

scholarly journals Post-Perovskite Phase Transition in the Pyrolitic Lowermost Mantle: Implications for Ubiquitous Occurrence of Post-Perovskite Above CMB

2021 ◽  
Author(s):  
Kei Hirose ◽  
Yasuhiro Kuwayama ◽  
Laura Cobden ◽  
Mayu Kusakabe ◽  
Shigehiko Tateno ◽  
...  
Keyword(s):  
Phase Transition ◽  
Perovskite Phase ◽  
Lowermost Mantle

Efficacy of the post-perovskite phase as an explanation for lowermost-mantle seismic properties

Nature ◽  
2005 ◽  
Vol 438 (7070) ◽  
pp. 1004-1007 ◽  
Author(s):  
James Wookey ◽  
Stephen Stackhouse ◽  
J-Michael Kendall ◽  
John Brodholt ◽  
G. David Price
Keyword(s):  
Perovskite Phase ◽  
Seismic Properties ◽  
Lowermost Mantle

scholarly journals In situ measurements of the majorite-akimotoite-perovskite phase transition boundaries in MgSiO3

2001 ◽  
Vol 28 (23) ◽  
pp. 4351-4354 ◽  
Author(s):  
Kei Hirose ◽  
Tetsuya Komabayashi ◽  
Motohiko Murakami ◽  
Ken-ichi Funakoshi
Keyword(s):  
Phase Transition ◽  
Perovskite Phase ◽  
In Situ Measurements

Stabilization of perovskite phase and dielectric properties of Pb(Zn, Mg)1/3Nb2/3O3-PbTiO3 ceramics prepared by excess constituent oxides

1994 ◽  
Vol 9 (10) ◽  
pp. 2634-2644 ◽  
Author(s):  
Hyun M. Jang ◽  
Kyu-Mann Lee ◽  
Moon-Ho Lee
Keyword(s):  
Phase Transition ◽  
Diffuse Phase Transition ◽  
Short Range ◽  
Perovskite Phase ◽  
Complex Impedance ◽  
Pyrochlore Phase ◽  
Charge Carriers ◽  
Pbtio3 Ceramics ◽  
Additional Formation ◽  
Diffuse Phase

The perovskite phase in PZN-PMN-PT (PbZn1/3Nb2/3O3-PbMg1/3Nb2/3O3-PbTiO3) pseudoternary ceramics was stabilized by the addition of excess constituent divalent oxides (PbO, MgO, and ZnO). 5 mol% excess MgO or 7.5 mol% excess PbO was sufficient to eliminate the remnant cubic pyrochlore phase after sintering at 1100 °C for 1 h. The enhanced diffuse phase transition (DPT) and the decrease in the electrical resistivity were observed in the presence of excess ZnO or MgO. These were interpreted in terms of the additional formation of negatively charged, short-range ordered 1: 1 domains with a concomitant generation of charge carriers (holes). The behavior of excess MgO or ZnO at concentrations above 5 mol% was studied by examining complex impedance patterns.

Lattice reconstruction of La-incorporated CsPbI2Br with suppressed phase transition for air-processed all-inorganic perovskite solar cells

2020 ◽  
Vol 8 (10) ◽  
pp. 3351-3358 ◽  
Author(s):  
Shoulong Chen ◽  
Tianju Zhang ◽  
Xiaolin Liu ◽  
Jinli Qiao ◽  
Lin Peng ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solar Cells ◽  
Perovskite Phase ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite

A stable CsPbI2Br perovskite phase can be achieved when doped with an appropriate amount of La3+ ions.

scholarly journals Pressure‐Induced Perovskite‐to‐non‐Perovskite Phase Transition in CsPbBr3

2021 ◽  
Author(s):  
Agnieszka Noculak ◽  
Simon C. Boehme ◽  
Marcel Aebli ◽  
Yevhen Shynkarenko ◽  
Kyle M. McCall ◽  
...  
Keyword(s):  
Phase Transition ◽  
Perovskite Phase
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