Energy band structure, acoustic velocities, optical phonon frequencies and mechanical properties of InP1-xSbx alloys under temperature and pressure

2021 ◽  
pp. 103720
Author(s):  
Elkenany.B. Elkenany
1967 ◽  
Vol 22 (2) ◽  
pp. 491-497 ◽  
Author(s):  
D. J. Morgan ◽  
J. A. Galloway

1997 ◽  
Vol 11 (11) ◽  
pp. 477-483 ◽  
Author(s):  
Z. J. Li ◽  
H. B. Xu ◽  
K. L. Yao

Starting from the extensional Su–Schrieffer–Heeger model taking into account the effects of interchain coupling, we have studied the energy spectra and electronic states of soliton excitation in polyacene. The dimerized displacement u0 is found to be similar to the case of trans-polyacetylene, and equals to 0.04 Å. The energy-band gap is 0.38 eV, in agreement with the results derived by other authors. Two new bound electronic states have been found in the conduction band and in the valence band, which is different from the one of trans-polyacetylene. There exists two degenerate soliton states in the center of energy gap. Furthermore, the distribution of charge density and spin density have been discussed in detail.


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