scholarly journals Underlying mechanism of charge transfer in Li-doped MgH16 at high pressure

2020 ◽  
Vol 102 (18) ◽  
Author(s):  
Chongze Wang ◽  
Seho Yi ◽  
Shuyuan Liu ◽  
Jun-Hyung Cho
Keyword(s):  
High Pressure ◽  
Charge Transfer ◽  
Underlying Mechanism

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.

Front Cover: Piezofluorochromism in Charge-Transfer Inclusion Crystals: The Influence of High Pressure versus Mechanical Grinding (ChemPhotoChem 5/2018)

ChemPhotoChem ◽  
2018 ◽  
Vol 2 (5) ◽  
pp. 382-382
Author(s):  
Toshikazu Ono ◽  
Yoshifumi Tsukiyama ◽  
Ai Taema ◽  
Hiroyasu Sato ◽  
Hidetoshi Kiyooka ◽  
...  
Keyword(s):  
High Pressure ◽  
Charge Transfer ◽  
Mechanical Grinding ◽  
Front Cover

High field ESR measurements of charge transfer salts under high pressure

2003 ◽  
Vol 135-136 ◽  
pp. 523-524 ◽  
Author(s):  
T. Sakurai ◽  
M. Saruhashi ◽  
Y. Inagaki ◽  
S. Okubo ◽  
H. Ohta ◽  
...  
Keyword(s):  
High Pressure ◽  
Charge Transfer ◽  
High Field ◽  
High Field Esr ◽  
Charge Transfer Salts

scholarly journals Ultrafast charge transfer dynamics in 2D Covalent Organic Frameworks/Re-complex hybrid photocatalyst for CO2 reduction: hot electrons vs. cold electrons

2021 ◽  
Author(s):  
Qinying Pan ◽  
Mohamed Abdellah ◽  
Yuehan Cao ◽  
Yang Liu ◽  
Weihua Lin ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Excitation Energy ◽  
Co2 Reduction ◽  
Underlying Mechanism ◽  
High Energy ◽  
Hot Electrons ◽  
Covalent Organic Frameworks ◽  
Energy Excitation ◽  
Energy Dependent

Abstract Rhenium(I)-carbonyl-diimine complexes are promising photocatalysts for CO2 reduction. Covalent organic frameworks (COFs) can be perfect sensitizers to enhance the reduction activities. Here we investigated the excited state dynamics of COF (TpBpy) with 2,2'-bipyridine incorporating Re(CO)5Cl (Re-TpBpy) to rationalize the underlying mechanism. The time-dependent DFT calculation first clarified excited state structure of the hybrid catalyst. The studies from transient visible and infrared spectroscopies revealed the excitation energy-dependent photo-induced charge transfer pathways in Re-TpBpy. Under low energy excitation, the electrons at the LUMO level are quickly injected from Bpy into ReI center (1–2 ps) followed by backward recombination (13 ps). Under high energy excitation, the hot-electrons are first injected into the higher unoccupied level of ReI center (1–2 ps) and then slowly relax back to the HOMO in COF (24 ps). There also remains long-lived free electrons in the COF moiety. This explained the excitation energy-dependent CO2 reduction performance in our system.

Compressibility and High-Pressure Electrical Resistivity of One-Dimensional Phthalocyanine Conductors: The Relationship with d-π Charge Transfer

1997 ◽  
Vol 296 (1) ◽  
pp. 255-268 ◽  
Author(s):  
Toshihiro Hiejima ◽  
Kyuya Yakushi ◽  
Takafumi Adachi ◽  
Osamu Shimomura ◽  
Keiki Takeda ◽  
...  
Keyword(s):  
High Pressure ◽  
Electrical Resistivity ◽  
Charge Transfer ◽  
One Dimensional ◽  
The Relationship

Iodine-amine charge-transfer complexes as spectrophotometric detectants in high pressure liquid chromatography

1977 ◽  
Vol 49 (13) ◽  
pp. 2080-2083 ◽  
Author(s):  
C. Randall. Clark ◽  
Charles M. Darling ◽  
Jen-Lee. Chan ◽  
Alfred C. Nichols
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
Charge Transfer ◽  
High Pressure Liquid Chromatography ◽  
Charge Transfer Complexes

Investigation of charge-transfer between a 4-mercaptobenzoic acid monolayer and TiO2nanoparticles under high pressure using surface-enhanced Raman scattering

2018 ◽  
Vol 54 (49) ◽  
pp. 6280-6283 ◽  
Author(s):  
Peng Li ◽  
Xiaolei Wang ◽  
Haiyan Li ◽  
Xuwei Yang ◽  
Xiaolei Zhang ◽  
...  
Keyword(s):  
High Pressure ◽  
Charge Transfer ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Effect Of Pressure ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

We investigated the CT process between a 4-MBA monolayer and TiO2NPs under high pressure using SERS, and the effect of pressure on CT process was explored.

Stimulated emission from charge‐transfer reactions in the afterglow of an e‐beam discharge into high‐pressure helium‐nitrogen mixtures

1974 ◽  
Vol 24 (10) ◽  
pp. 477-478 ◽  
Author(s):  
C. B. Collins ◽  
A. J. Cunningham ◽  
S. M. Curry ◽  
B. W. Johnson ◽  
M. Stockton
Keyword(s):  
High Pressure ◽  
Charge Transfer ◽  
Stimulated Emission ◽  
Transfer Reactions ◽  
Charge Transfer Reactions
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