Phys. Rev. B 44, 431–434 (1991)Inverse Peierls transition induced by photoexcitation in potassium tetracyanoquinodimethane crystals
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. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.44.431
DOI:
10.1103/PhysRevB.44.431
PACS:
78.20.-e, 78.47.+p, 72.40.+w, 73.20.Dx
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