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Magnetic Susceptibilities of Low‐Dimensional Organic Donor–Acceptor Salts
Author(s) -
Schulte J.,
Böhm M. C.
Publication year - 1992
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221710210
Subject(s) - volume (thermodynamics) , condensed matter physics , lattice constant , constant (computer programming) , chemistry , lattice (music) , acceptor , magnetic susceptibility , thermodynamics , charge (physics) , physics , optics , quantum mechanics , computer science , diffraction , acoustics , programming language
The magnetic susceptibility χ of the low‐dimensional organic charge‐transfer salts TTF‐TCNQ, (TMTSF) 2 PF 6 and (2,5‐CH 3 DCNQI) 2 Ag is studied by a theoretical model which takes into account the χ‐enhancement due to electronic correlations as well as volume effects of the lattice as a function of temperature. Experimental data are reproduced both under constant pressure and constant volume conditions. The suggested approach reproduces the absolute values of χ and the corresponding temperature gradient. The theoretical expressions are valid for any band filling and correlation strength.