Open AccessConductivity and structure of bilinear organic addition compounds
Author(s) -
John C. Phillips
Publication year - 1976
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.73.11.3820
Subject(s) - tetrathiafulvalene , tetracyanoquinodimethane , phase transition , electrical resistivity and conductivity , phase (matter) , materials science , condensed matter physics , conductivity , character (mathematics) , chemical physics , crystal (programming language) , crystallography , chemistry , molecule , physics , organic chemistry , geometry , mathematics , quantum mechanics , computer science , programming language
The relationship between crystal structures and metallic conductivities of linear organic materials such as tetrathiafulvalene-tetracyanoquinodimethane is explained in terms of strong lateral elastic interactions between chains. A microdomain model is presented in which at high temperatures there are, in general, two coexisting phases on each stacked molecular chain. The ordering of (in general, four) phases on two interacting chains leads to a variety of phase transitions at low temperatures. By examining temperature-dependent electrical conductivities and magnetic susceptibilities one can establish the character of each such transition.