Complex dielectric function and opto-electronic characterization using VEELS for the lead-free BCZT electro-ceramic perovskite

Micron ◽  
2021 ◽  
pp. 103124
Author(s):  
G. Herrera-Perez ◽  
C. Ornelas-Gutierrez ◽  
A. Reyes-Montero ◽  
F. Paraguay-Delgado ◽  
A. Reyes-Rojas ◽  
...  
Keyword(s):  
Dielectric Function ◽  
Lead Free ◽  
Complex Dielectric Function

Complex dielectric function in lead-free NKN films

2012 ◽  
Author(s):  
R. Schwarz ◽  
R. Ayouchi ◽  
S. R. Bhattacharyya ◽  
M. Leal ◽  
U. Mardolcar ◽  
...  
Keyword(s):  
Dielectric Function ◽  
Lead Free ◽  
Complex Dielectric Function

Picosecond Laser Induced Melting: The Dielectric Function of Molten Silicon and Superheating in the Liquid Phase

1988 ◽  
Vol 100 ◽  
Author(s):  
P. M. Fauchet ◽  
K. D. Li
Keyword(s):  
Liquid Phase ◽  
Melting Temperature ◽  
Dielectric Function ◽  
Picosecond Laser ◽  
Computer Code ◽  
Molten Silicon ◽  
Complex Dielectric Function ◽  
Liquid Temperature ◽  
Transient Heating ◽  
Pump And Probe

ABSTRACTThe complex dielectric function of molten silicon produced after picosecond illumination is found to be well described by a Drude model from 1.1 eV to 3.5 eV. Close to the melting temperature, we obtain ωp = 2.50 1016rad/s and τ = 212 10−18s. Transiently, the liquid temperature can exceed the melting temperature or even the boiling temperature Tb. We observe this transient heating and model it with a relatively simple computer code which includes superheating of the liquid above Tb. These measurements are possible thanks to a novel pump and probe technique.

scholarly journals Size-dependent complex dielectric function of Ni, Mo, W, Pb, Zn and Na nanoparticles. Application to sizing

2016 ◽  
Vol 49 (7) ◽  
pp. 075302 ◽  
Author(s):  
David Muñetón Arboleda ◽  
Jesica M J Santillán ◽  
Luis J Mendoza Herrera ◽  
Diego Muraca ◽  
Daniel C Schinca ◽  
...  
Keyword(s):  
Dielectric Function ◽  
Complex Dielectric Function ◽  
Size Dependent

Novel Model for the Optical Function: Application to Hexagonal Gan

2001 ◽  
Vol 677 ◽  
Author(s):  
Y. Chan ◽  
Aleksandra B. Djurišić ◽  
E. Herbert Li
Keyword(s):  
Experimental Data ◽  
Closed Form ◽  
Dielectric Function ◽  
Absorption Edge ◽  
Low Energy ◽  
Optical Function ◽  
Complex Dielectric Function ◽  
Proposed Model ◽  
Novel Model ◽  
Good Agreement

ABSTRACTIn this work we propose an analytical expression for the complex dielectric function that includes both discrete and continuum exciton effects. The model is based on the work of Elliott and the proposed model has been applied to modeling the experimental data for the hexagonal GaN. We have obtained good agreement with the experimental data. The model assumes Lorentzian broadening in order to obtain dielectric function equations in analytically closed form. We show that Lorentzian broadened dielectric function decays more slowly than the experimental data for hexagonal GaN at the low energy side. This indicates that the broadening of the absorption edge in GaN is not purely Lorentzian. The agreement with the experimental data can be improved using adjustable broadening modification.

Experiment investigation on the complex dielectric function of CdS in the exciton and in the plasma limit

1982 ◽  
Vol 114 (2) ◽  
pp. 537-544 ◽  
Author(s):  
A. Kreissl ◽  
K. Bohnert ◽  
V. G. Lyssenko ◽  
C. Klingshirn
Keyword(s):  
Dielectric Function ◽  
Complex Dielectric Function
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