D Baeriswyl and A R Bishop 1988 J. Phys. C: Solid State Phys. 21 339 doi:10.1088/0022-3719/21/2/018
D Baeriswyl and A R Bishop
Show affiliationsThe authors describe a model of halogen-bridged mixed-valence linear chain complexes (transition-metal ions bridged by halogen ions) incorporating electrons coupled to on-site and inter-site phonons. They show that the charge-transfer situation appropriate to many members of the class corresponds to a charge-density wave with strong electron-phonon coupling. In this regime, they calculate intrinsic defect states, including kinks, polarons, bipolarons and excitons. These are strongly localised and are important in view of the growing attention given to local modes in solids. Available structural and optical data can be explained if an on-site Coulomb interaction is also included. The resulting parameter values suggest that, despite the large distortions observed, the mixed-valence state in many of these compounds is only marginally stable.
Issue 2 (20 January 1988)
D Baeriswyl and A R Bishop 1988 J. Phys. C: Solid State Phys. 21 339
C P Ballance et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 1131
U Bruzzo and R Cianci 1985 J. Phys. A: Math. Gen. 18 417
Thomas Nowotny et al 2001 J. Phys. A: Math. Gen. 34 1
Camille Gómez-Laberge and Andy Adler 2008 Physiol. Meas. 29 S89
Michael Stock and Thomas J Witt 2006 Metrologia 43 583
Mikolaj Misiak 2001 J. Phys. G: Nucl. Part. Phys. 27 1051
Maria Giller 2003 J. Phys. G: Nucl. Part. Phys. 29 853
B M Lagutin et al 1996 J. Phys. B: At. Mol. Opt. Phys. 29 937
Jack W Judy 2001 Smart Mater. Struct. 10 1115