Inverse Peierls transition induced by photoexcitation in potassium tetracyanoquinodimethane crystals
- 1 July 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 44 (1) , 431-434
- https://doi.org/10.1103/physrevb.44.431
Abstract
Photoinduced absorption spectra for vibrational and electronic excitations have been investigated in a prototypical one-dimensional Peierls-Hubbard system, potassium tetracyanoquinodimethane crystals. Strong photoinduced-absorption signals and their temperature-and time-dependent characteristics are discussed in terms of dynamics of a photoconverted molecular domains with no Peierls distortion in the background Peierls-distorted tetracyanoquinodimethane stacks. A close correlation between domain excitations and photoconductivity has also been confirmed.Keywords
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