Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
From inside the book
Results 1-3 of 6
Page 7
... elastic energy associ- ated with o - bond compression and the second term is the tight - binding π - electron Hamiltonian . Both the elastic energy per o - bond f ( r ) and the resonance ( or hopping ) integral t ( r ) depend on the ...
... elastic energy associ- ated with o - bond compression and the second term is the tight - binding π - electron Hamiltonian . Both the elastic energy per o - bond f ( r ) and the resonance ( or hopping ) integral t ( r ) depend on the ...
Page 20
... energy due to the opening of a gap becomes always larger than the increase in elastic energy for small enough 8 · Minimalizing the energy with respect to 8 we find the gap parameter in the weak- ( 22 ) ( 23 ) ( 24 ) coupling limit 4 ...
... energy due to the opening of a gap becomes always larger than the increase in elastic energy for small enough 8 · Minimalizing the energy with respect to 8 we find the gap parameter in the weak- ( 22 ) ( 23 ) ( 24 ) coupling limit 4 ...
Page 48
... energy from Eq . ( 40 ) . One finds ( 67 ) ( 68 ) Ex EK Ex = 1/4 401-12 + hvp dk m + 2L dk ] ( 69 ) -A where the first term represents the decrease in elastic energy and the other terms the increase in electronic energy . The first two ...
... energy from Eq . ( 40 ) . One finds ( 67 ) ( 68 ) Ex EK Ex = 1/4 401-12 + hvp dk m + 2L dk ] ( 69 ) -A where the first term represents the decrease in elastic energy and the other terms the increase in electronic energy . The first two ...
Common terms and phrases
A.J. Heeger absorption amplitude approximation associated assume Baeriswyl band becomes Bishop bond alternation bond length bond order boundary calculations Campbell chain changes charge conducting configuration consider constant continuum limit correlation corresponds coupling defect density depend described determined dimerization discrete discuss disorder distortion dynamical effects electronic energy equation et al expected experiments extent field fluctuations force function given gives ground Hamiltonian hand Hückel impurity increasing integral interaction interchain coupling involved kink lattice leads Lett levels limit MacDiarmid Mele modes Notice observed obtained optical parameter particular Peierls phase phonon Phys Physics points polaron polyacetylene polymers potential presented produced properties proposed represents respect Rice Schrieffer self-consistency shown single Solid soliton solution strongly structure temperature theory whereas yields