Optical Properties of Ordered Ge-Si Atomic-Layer Superlattices

1987 ◽  
Vol 91 ◽  
Author(s):  
T. P. Pearsall ◽  
J. Bevk ◽  
J. C. Bean ◽  
J. M. Bonar ◽  
J. P. Mannaerts
Keyword(s):  
Optical Properties ◽  
Band Structure ◽  
Atomic Layer ◽  
Electronic Energy ◽  
Optical Transitions ◽  
Energy Bands ◽  
Si Substrates ◽  
Superlattice Structure ◽  
Random Alloy ◽  
Electronic Energy Bands

ABSTRACTA systematic study of the band-to-band optical transitions in commensurate strainedlayer superlattices of Ge and Si grown on (001) Si substrates show the presence of new electronic energy bands. Our measurements suggest that superlattice structure on the same scale as the unit cell results in a band structure significantly different from that of a random alloy.

Electronic energy bands and optical properties of Ir and Pt

1983 ◽  
Vol 13 (12) ◽  
pp. 2569-2580 ◽  
Author(s):  
P N Ray ◽  
J Chowdhuri ◽  
S Chatterjee
Keyword(s):  
Optical Properties ◽  
Electronic Energy ◽  
Energy Bands ◽  
Electronic Energy Bands

EFFECTS OF NEXT-NEAREST-NEIGHBOR HOPPING INTERACTION ON THE STRUCTURE OF ELECTRONIC ENERGY BANDS OF POLYDIACETYLENES

1996 ◽  
Vol 10 (19) ◽  
pp. 931-937 ◽  
Author(s):  
H.F. HU ◽  
K.L. YAO
Keyword(s):  
Band Structure ◽  
Electronic State ◽  
Energy Band ◽  
Nearest Neighbor ◽  
Energy Gap ◽  
Electronic Energy ◽  
Energy Band Structure ◽  
Energy Bands ◽  
Extensional Model ◽  
Electronic Energy Bands

Starting from the extensional model Hückel Hamiltonian containing the next-neighbor hopping interactions, the energy band structure and their variation have been studied for polydiacetylenes (PDA’s). With the increase of the next-neighbor hopping interaction parameter ρ the results show that: (1) the electronic state symmetry is broken, (2) the locations and the widths of energy bands have been changed, and (3) the energy gap becomes narrower and the total bandwidth broader. Finally, the effect of the nextneighbor hopping interactions on the band-structure is discussed.

Electronic energy bands of lead: Angle-resolved photoemission and band-structure calculations

1984 ◽  
Vol 30 (4) ◽  
pp. 1711-1719 ◽  
Author(s):  
K. Horn ◽  
B. Reihl ◽  
A. Zartner ◽  
D. E. Eastman ◽  
K. Hermann ◽  
...  
Keyword(s):  
Band Structure ◽  
Electronic Energy ◽  
Energy Bands ◽  
Lead Angle ◽  
Band Structure Calculations ◽  
Electronic Energy Bands ◽  
Structure Calculations
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