High-pressure experiments and the phase diagram of lower mantle and core materials

2000 ◽  
Vol 38 (2) ◽  
pp. 221-245 ◽  
Author(s):  
R. Boehler
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Lower Mantle ◽  
Core Materials

scholarly journals From Slater to Mott physics by epitaxially engineering electronic correlations in oxide interfaces

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Carla Lupo ◽  
Evan Sheridan ◽  
Edoardo Fertitta ◽  
David Dubbink ◽  
Chris J. Pickard ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Charge Transfer ◽  
Lower Mantle ◽  
Random Structure ◽  
Titanium Oxides ◽  
Oxide Interfaces ◽  
Electronic Correlations ◽  
Epitaxial Strain ◽  
Magnetic Switching

AbstractUsing spin-assisted ab initio random structure searches, we explore an exhaustive quantum phase diagram of archetypal interfaced Mott insulators, i.e. lanthanum-iron and lanthanum-titanium oxides. In particular, we report that the charge transfer induced by the interfacial electronic reconstruction stabilises a high-spin ferrous Fe2+ state. We provide a pathway to control the strength of correlation in this electronic state by tuning the epitaxial strain, yielding a manifold of quantum electronic phases, i.e. Mott-Hubbard, charge transfer and Slater insulating states. Furthermore, we report that the electronic correlations are closely related to the structural oxygen octahedral rotations, whose control is able to stabilise the low-spin state of Fe2+ at low pressure previously observed only under the extreme high pressure conditions in the Earth’s lower mantle. Thus, we provide avenues for magnetic switching via THz radiations which have crucial implications for next generation of spintronics technologies.

High pressure-temperature phase diagram and equation of state of titanium

2015 ◽  
Vol 91 (13) ◽  
Author(s):  
Agnès Dewaele ◽  
Vincent Stutzmann ◽  
Johann Bouchet ◽  
François Bottin ◽  
Florent Occelli ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Equation Of State ◽  
Temperature Phase ◽  
Temperature Phase Diagram

High pressure–low temperature phase diagram of barium: Simplicity versus complexity

2015 ◽  
Vol 107 (22) ◽  
pp. 221908 ◽  
Author(s):  
Serge Desgreniers ◽  
John S. Tse ◽  
Takahiro Matsuoka ◽  
Yasuo Ohishi ◽  
Quan Li ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Low Temperature ◽  
Temperature Phase ◽  
Low Temperature Phase ◽  
Temperature Phase Diagram

The aluminum-zinc phase diagram under high pressure

1994 ◽  
Vol 209 (1-2) ◽  
pp. 311-317 ◽  
Author(s):  
Yasuo Fujinaga ◽  
Tasaku Sato
Keyword(s):  
Phase Diagram ◽  
High Pressure

scholarly journals High-Pressure Phase Transition of Micro- and Nanoscale HoVO4 and High-Pressure Phase Diagram of REVO4 with RE Ionic Radius

ACS Omega ◽  
2018 ◽  
Vol 3 (12) ◽  
pp. 18227-18233 ◽  
Author(s):  
Junbo Gong ◽  
Xiaodong Fan ◽  
Rucheng Dai ◽  
Zhongping Wang ◽  
Zejun Ding ◽  
...  
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
High Pressure ◽  
Ionic Radius ◽  
High Pressure Phase ◽  
High Pressure Phase Transition ◽  
Pressure Phase
Sign in / Sign up

Export Citation Format

Share Document