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Low-temperature reflection spectrum of K-TCNQ single crystal

โœ Scribed by Kyuya Yakushi; Takahisa Kusaka; Haruo Kuroda

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
338 KB
Volume
68
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Polarized reflection spectra of a K-TCNQ single cmstal have been measured at 27,295 and 413 I;. The absorption spectra were derived from the observed reflection spectra by Kramer+-Kronig transformation. At 27 K. the near-infrared absorption band u hich is associated with the charge transfer between TCNQ-ions, splits into 2 strong sharp peak at 8 X IO3 cm-l and P weak broad band at I I X LO3 cm-t_ These bands were interpreted in terms of the strongly correlated extended Hubbard model induding the nearest-neighborcoulomb intemcrion.

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