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 TMF, 1994, Volume 101, Number 1, Pages 110–122 (Mi tmf1673)

Pining effect in Pierles doped systems with deviation from half-filling of energy band

M. E. Palistrant

Institute of Applied Physics Academy of Sciences of Moldova

Abstract: A study is made of the effect of deviation from half-filling of the energy band ($\mu \ne 0$) on the Fröhlich collective mode in onedimensional impurity systems. A low impurity concentration is considered, and the infinite series of impurity scattering is taken into account self-consistently in the determination of the collective mode Green's function. The conductivity $\sigma (\omega)$ is found in terms of this Green's function, and an analytic expression is obtained for $\sigma (\omega)$ at $\omega \sim \omega _T$ ($\omega _T$ is the pinning frequency). It is shown that for the ratio $\operatorname {Re}\frac {\sigma (\omega)}{\sigma _{\max}}$ a universal formula arises. It differs from the results of Kurihara in the expression for $\omega _T$, which contains an essential dependence on $\mu$ in the incommensurate state of the charge density wave. It is also shown that the width of the peak in the dependence $\sigma (\omega)$ and its position increase with increasing $\mu$.

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English version:
Theoretical and Mathematical Physics, 1994, 101:1, 1235–1244

Bibliographic databases:

Citation: M. E. Palistrant, “Pining effect in Pierles doped systems with deviation from half-filling of energy band”, TMF, 101:1 (1994), 110–122; Theoret. and Math. Phys., 101:1 (1994), 1235–1244

Citation in format AMSBIB
\Bibitem{Pal94} \by M.~E.~Palistrant \paper Pining effect in Pierles doped systems with deviation from half-filling of energy band \jour TMF \yr 1994 \vol 101 \issue 1 \pages 110--122 \mathnet{http://mi.mathnet.ru/tmf1673} \transl \jour Theoret. and Math. Phys. \yr 1994 \vol 101 \issue 1 \pages 1235--1244 \crossref{https://doi.org/10.1007/BF01079261} \isi{http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&DestLinkType=FullRecord&DestApp=ALL_WOS&KeyUT=A1994QT57100010}