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Universal subgap optical conductivity in quasi-one-dimensional peierls systems (1993).
| Content Provider | CiteSeerX |
|---|---|
| Author | Kim, Kihong Mckenzie, Ross H. Wilkins, John W. |
| Abstract | Quasi-one-dimensional Peierls systems with quantum and thermal lattice fluctuations can be modeled by a Dirac-type equation with a Gaussiancorrelated off-diagonal disorder. A powerful new method gives the exact disorder-averaged Green function used to compute the optical conductivity. The strong subgap tail of the conductivity has a universal scaling form. The frequency and temperature dependence of the calculated spectrum agrees with experiments on KCP(Br) and trans-polyacetylene. PACS numbers: 71.38.+i, 71.45.Lr, 78.65.Hc Typeset using REVTEX 1 The interesting new physics exhibited by quasi-one-dimensional electronic materials continues to expand as advances in synthetic chemistry [1] and semiconductor fabrication technology [2] make new materials available for study. Many quasi-one-dimensional materials undergo a structural instability known as the Peierls or charge-density-wave instability [3–5]. Each chain has a periodic lattice distortion with twice the Fermi wavevector, 2kF, resulting |
| File Format | |
| Publisher Date | 1993-01-01 |
| Access Restriction | Open |
| Subject Keyword | Quasi-one-dimensional Peierls System Universal Subgap Optical Conductivity Exact Disorder-averaged Green Function Hc Typeset Fermi Wavevector Off-diagonal Disorder Powerful New Method Dirac-type Equation Charge-density-wave Instability Periodic Lattice Distortion Interesting New Physic Strong Subgap Tail Thermal Lattice Fluctuation Optical Conductivity Universal Scaling Form Pac Number Synthetic Chemistry New Material Structural Instability Many Quasi-one-dimensional Material Semiconductor Fabrication Technology Quasi-one-dimensional Electronic Material Temperature Dependence Calculated Spectrum |
| Content Type | Text |
