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Toward a very simple picture of disorder effects in one‐dimensional organic conductors
Author(s) -
Dugay M.,
Roustan J.
Publication year - 1980
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560180413
Subject(s) - electrical conductor , metal–insulator transition , insulator (electricity) , condensed matter physics , a priori and a posteriori , simple (philosophy) , focus (optics) , chemical physics , electrical resistivity and conductivity , statistical physics , materials science , chemistry , physics , quantum mechanics , optics , optoelectronics , philosophy , epistemology
We present a simple model for the calculation of some properties of disordered one‐dimensional organic conductors. We focus our attention on two points: the decrease of the insulator‐to‐metal transition temperature and the increase of the highest electrical conductivity temperature that both occur when the amount of disorder is increased. We give an explanation that brings a new insight to the still little understood zone around the insulator‐to‐metal transition. The model enters the general framework of the alternant molecular orbital method and seems to be a priori restricted to systems such as NMP‐TCNQ. We discuss its possible application to more complicated systems such as TTF‐TCNQ.