Connecting the Water Phase Diagram to the Metastable Domain: High-Pressure Studies in the Supercooled Regime

2014 ◽  
Vol 5 (21) ◽  
pp. 3804-3809 ◽  
Author(s):  
Samuele Fanetti ◽  
Marco Pagliai ◽  
Margherita Citroni ◽  
Andrea Lapini ◽  
Sandro Scandolo ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Water Phase ◽  
High Pressure Studies

High Pressure Studies of Quantum Well Emission and Deep Emission in GaInP(ordered)-GaAs Heterostructures

1997 ◽  
Vol 499 ◽  
Author(s):  
S. H. Kwok ◽  
P. Y. Yu ◽  
K. Uchida ◽  
T. Arai
Keyword(s):  
High Pressure ◽  
Quantum Well ◽  
Emission Band ◽  
Excitation Power ◽  
High Excitation ◽  
High Pressure Studies ◽  
Band Alignments ◽  
High Pressure Study

ABSTRACTWe report on a high pressure study of emission from a series of GaInP(ordered)/GaAs heterostructures. A so-called “deep emission” band at 1.46 eV is observed in all our samples. At high excitation power, quantum well emission emerges in only one structure where thin GaP layers are inserted on both sides of the GaAs well. From the pressure dependent emission in this sample we have determined its band alignments. The role of the GaP layers in suppressing the deep emission is elucidated.

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
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