Kumar, Manoranjan ; Ramasesha, S. ; Pascal Jr., R. A. ; Soos, Z. G. (2008) Dimerization transition of alkali-TCNQ salts: charge degrees of freedom near the CDW boundary EPL: Europhysics Letters, 83 (3). 37001_1-37001_5. ISSN 0295-5075
Full text not available from this repository.
Official URL: http://iopscience.iop.org/0295-5075/83/3/37001
Related URL: http://dx.doi.org/10.1209/0295-5075/83/37001
Abstract
Stacks of TCNQ− radical ions in 1:1 alkali salts are shown to be near the charge-density-wave (CDW) boundary, where charge degrees of freedom induce strong dimerization δ. Charge-transfer absorption and δ(V) are obtained for a one-dimensional (1D) Hubbard model with long-range Coulomb interactions V that ranges from spin-Peierls at V=0 to the CDW boundary at Vc and beyond. Cation dimerization lifts the degeneracy of Peierls systems and confers 3D contributions to the dimerization transition of alkali-TCNQ salts.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to EDP Sciences. |
| ID Code: | 39504 |
| Deposited On: | 13 May 2011 09:40 |
| Last Modified: | 13 May 2011 09:40 |
Repository Staff Only: item control page
