Structural Model for Metallic State of Doped Polyacetylene
نویسندگان
چکیده
منابع مشابه
Characterization of Polyacetylene and Polyacetylene Doped with Palladium
Samples of Naarmann polyacetylene, denoted as N-(CH)x, (unstretched) and polyacetylene doped with Pd have been investigated, being characterized by: (i) conductivity using the four-point method, (ii) bulk concentration of Pd using the atomic absorption method, (iii) bulk density using helium pycnometry, (iv) surface composition by X-ray photoelectron spectroscopy and (v) electron transport para...
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2014 By doping, the electrical behaviour of polyacetylene film was considerably modified leading to the large development of the research in the field of conducting polymers. The aim of this paper is to point out the inhomogeneity of the dopant through the film cross section, in particular with I2 and SbF5. It is also evidenced that errors may be induced by these inhomogeneities in the interpre...
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The optical reflectance of polyacetylene doped with high concentrations of potassium has been measured, and the optical properties estimated by Kramers–Kronig analysis. The samples, doped by a vapor-phase technique to y ≈ 0.08 and 0.18, showed strong doping-induced infrared absorption at ∼900, 1270, and 1390 cm−1. These experiments were motivated by calculations of the infrared absorption which...
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The Landau theory used by Choi and Mele (CM) to treat their rotor model on a triangular lattice for the orientational ordering of polyacetylene chains in alkali-metal-doped polyacetylene is studied. A reanalysis of the higher-order terms in the Landau expansion indicates that cosine ordering can support a nonzero cubic term in the Landau expansion whereas the sine-ordered phase has no such term...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 1993
ISSN: 0375-9687
DOI: 10.1143/ptps.113.61