Theoretical analysis of the density of states and phase times: Application to resonant electromagnetic modes in finite superlattices

2001 ◽  
Vol 63 (3) ◽  
Author(s):  
M. L. H. Lahlaouti ◽  
A. Akjouj ◽  
B. Djafari-Rouhani ◽  
L. Dobrzynski ◽  
M. Hammouchi ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Density Of States

Resonant guided elastic waves in an adsorbed bilayer: Theoretical analysis of the density of states

1997 ◽  
Vol 55 (7) ◽  
pp. 4442-4448 ◽  
Author(s):  
E. H. El Boudouti ◽  
B. Djafari-Rouhani ◽  
A. Akjouj
Keyword(s):  
Theoretical Analysis ◽  
Density Of States ◽  
Elastic Waves

Resonant states in quantum wells: theoretical analysis of the density of states and phase times

1998 ◽  
Vol 10 (9) ◽  
pp. 2039-2052 ◽  
Author(s):  
M Hammouchi ◽  
E H El Boudouti ◽  
A Nougaoui ◽  
B Djafari-Rouhani
Keyword(s):  
Theoretical Analysis ◽  
Quantum Wells ◽  
Density Of States ◽  
Resonant States

Resonant guided elastic waves in an adsorbed slab: theoretical analysis of the density of states

1994 ◽  
Vol 6 (6) ◽  
pp. 1089-1098 ◽  
Author(s):  
A Akjouj ◽  
E H El Boudouti ◽  
B Djafari-Rouhani ◽  
L Dobrzynski
Keyword(s):  
Theoretical Analysis ◽  
Density Of States ◽  
Elastic Waves

High-Temperature Superconductivity in Graphite-Sulfur Composites: Theoretical Analysis

2001 ◽  
Vol 689 ◽  
Author(s):  
D. S. Galvão ◽  
B. Laks ◽  
R. R. da Silva ◽  
J. H. S. Torres ◽  
Y. Kopelevich
Keyword(s):  
Electronic Structure ◽  
High Temperature ◽  
Theoretical Analysis ◽  
Density Of States ◽  
High Temperature Superconductivity ◽  
Tight Binding ◽  
Two Dimensional ◽  
Negative Factor ◽  
Structure Changes ◽  
Geometric Curvature

ABSTRACTRecently superconductivity in graphite-sulfur composites was experimentally observed. In this work we have analyzed the electronic structure changes associated with the presence of sulfur atoms in one and two dimensional graphite layers. We have considered ordered and disordered sulfur atoms distributions in many configurations. The density of states (DOS) of these structures were obtained using the negative factor counting (NFC) technique coupled to a tight-binding hamiltonian (Hückel type). Our results indicate that the incorporation of sulfur atoms at edge graphite layers (changing their global geometric curvature and increasing the DOS at the Fermi level) might be in the origin of the graphite superconductivity.

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