Theoretical Aspects of Conducting Polymers: Electronic Structure and Defect States |
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Page 35
Electronic Structure and Defect States Dionys Baeriswyl. 3.3 Ground State and Small Amplitude Fluctuations It is straightforward to study the Peierls distortion in the continuum limit . Assuming a homogeneous order parameter ( 4 = 40 ) ...
Electronic Structure and Defect States Dionys Baeriswyl. 3.3 Ground State and Small Amplitude Fluctuations It is straightforward to study the Peierls distortion in the continuum limit . Assuming a homogeneous order parameter ( 4 = 40 ) ...
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... amplitude defect which satisfies the boundary condition △ ( L / 2 ) = − △ ( -L / 2 ) . It is natural to look for similar large amplitude defects where the order parameter does not change sign . Such states do indeed exist and an ...
... amplitude defect which satisfies the boundary condition △ ( L / 2 ) = − △ ( -L / 2 ) . It is natural to look for similar large amplitude defects where the order parameter does not change sign . Such states do indeed exist and an ...
Page 69
... amplitude ( Fincher et al . 1982 , Clarke et al . 1983 ) . This may be an accident since the value chosen for U does not correspond to the strong - coupling limit , but rather to an intermediate ( 80 ) regime . On the other hand this ...
... amplitude ( Fincher et al . 1982 , Clarke et al . 1983 ) . This may be an accident since the value chosen for U does not correspond to the strong - coupling limit , but rather to an intermediate ( 80 ) regime . On the other hand this ...
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