Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 4
... Section 3 the continuum limit of the Hückel model is presented . Both the properties of the homogeneous ground state and the spectrum of small amplitude fluctuations are derived . Section 4 contains a rather detailed discussion of ...
... Section 3 the continuum limit of the Hückel model is presented . Both the properties of the homogeneous ground state and the spectrum of small amplitude fluctuations are derived . Section 4 contains a rather detailed discussion of ...
Page 67
... Section 2 exhibits both an acoustic and an optical phonon branch in the dimerized state ( Schulz 1978 ) . In the continuum limit discussed in Section 3 only optical modes have been taken into account . It is however straightforward to ...
... Section 2 exhibits both an acoustic and an optical phonon branch in the dimerized state ( Schulz 1978 ) . In the continuum limit discussed in Section 3 only optical modes have been taken into account . It is however straightforward to ...
Page 78
... Section 2.5 . A single impurity at n = 0 produces a donor state for Vo < 0 and an acceptor state for V > 0 with a level at ε = - O A sinn where cot n = Vo / ( 2t ) ,, -π / 2 < n < π / 2 , whereas the extent to the ( kink ) length of the ...
... Section 2.5 . A single impurity at n = 0 produces a donor state for Vo < 0 and an acceptor state for V > 0 with a level at ε = - O A sinn where cot n = Vo / ( 2t ) ,, -π / 2 < n < π / 2 , whereas the extent to the ( kink ) length of the ...
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