Experimental and Theoretical Studies on the Controlled Synthesis of Alkali-Metal-Doped Rare-Earth Oxysulfide Nanocrystals

ChemPlusChem ◽  
2013 ◽  
Vol 78 (6) ◽  
pp. 515-521 ◽  
Author(s):  
Tao Zhang ◽  
Jun Gu ◽  
Yi Ding ◽  
Ya-Wen Zhang ◽  
Chun-Hua Yan
Keyword(s):  
Rare Earth ◽  
Alkali Metal ◽  
Controlled Synthesis ◽  
Theoretical Studies ◽  
Metal Doped ◽  
Experimental And Theoretical Studies ◽  
Rare Earth Oxysulfide

scholarly journals Structure–Property Relationships for Weak Ferromagnetic Perovskites

2021 ◽  
Vol 7 (8) ◽  
pp. 111
Author(s):  
Alexander Moskvin
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Theoretical Studies ◽  
Structure Property ◽  
Magnetoelastic Anisotropy ◽  
Structure Property Relationships ◽  
Simple Theoretical Model ◽  
Experimental And Theoretical Studies ◽  
Weak Ferromagnetic ◽  
Magnetic Sublattices

Despite several decades of active experimental and theoretical studies of rare-earth orthoferrites, the mechanism of the formation of their specific magnetic, magnetoelastic, optical, and magneto-optical properties remains a subject of discussion. This paper provides an overview of simple theoretical model approaches to quantitatively describing the structure–property relationships—in particular, the interplay between FeO6 octahedral deformations/rotations and the main magnetic and optic characteristics, such as Néel temperature, overt and hidden canting of magnetic sublattices, magnetic and magnetoelastic anisotropy, and optic and photoelastic anisotropy.

Complexation of the p-t-butyl-calix[4]arene anion with alkali metal cations in polar, non-aqueous solvents: experimental and theoretical studies

1996 ◽  
Vol 246 (1-2) ◽  
pp. 275-286 ◽  
Author(s):  
Rym Abidi ◽  
Murray V. Baker ◽  
Jack M. Harrowfield ◽  
Diana S.-C. Ho ◽  
William R. Richmond ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Cations ◽  
Theoretical Studies ◽  
Alkali Metal Cations ◽  
Experimental And Theoretical Studies

Imidazolin-2-iminato Complexes of Rare Earth Metals with Very Short Metal−Nitrogen Bonds: Experimental and Theoretical Studies

2009 ◽  
Vol 48 (12) ◽  
pp. 5462-5472 ◽  
Author(s):  
Tarun K. Panda ◽  
Alexandra G. Trambitas ◽  
Thomas Bannenberg ◽  
Cristian G. Hrib ◽  
Sören Randoll ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metals ◽  
Theoretical Studies ◽  
Nitrogen Bonds ◽  
Complexes Of Rare Earth ◽  
Experimental And Theoretical Studies

The Stabilizing Effect of Pre-Equilibria: A Trifluoromethyl Complex as CF2 Reservoir in Catalytic Olefin Difluorocarbenation

2020 ◽  
Author(s):  
Thomas Louis-Goff ◽  
Huu Vinh Trinh ◽  
Eileen Chen ◽  
Arnold L. Rheingold ◽  
Christian Ehm ◽  
...  
Keyword(s):  
High Selectivity ◽  
Side Reactions ◽  
Theoretical Studies ◽  
Attractive Feature ◽  
Catalyst Recovery ◽  
Wide Range ◽  
Stabilizing Effect ◽  
Experimental And Theoretical Studies

A new, efficient, catalytic difluorocarbenation of olefins to give 1,1-difluorocyclopropanes is presented. The catalyst, an organobismuth complex, uses TMSCF<sub>3</sub> as a stoichiometric difluorocarbene source. We demonstrate both the viability and robustness of this reaction over a wide range of alkenes and alkynes, including electron-poor alkenes, to generate the corresponding 1,1-difluorocyclopropanes and 1,1-difluorocyclopropenes. Ease of catalyst recovery from the reaction mixture is another attractive feature of this method. In depth experimental and theoretical studies showed that the key difluorocarbene-generating step proceeds through a bismuth non-redox synchronous mechanism generating a highly reactive free CF<sub>2</sub> in an endergonic pre-equilibrium. It is the reversibility when generating the difluorocarbene that accounts for the high selectivity, while minimizing CF<sub>2</sub>-recombination side-reactions.

Strong coupling: resonant effects

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Experimental Studies ◽  
Strong Coupling Regime ◽  
Theoretical Studies ◽  
Stimulated Scattering ◽  
Quantum Theories ◽  
Pump Probe ◽  
Exciton Polaritons ◽  
Linear Optical Properties ◽  
Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

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