One-Electron Theory and the Properties of Simple TCNQ Salts

  • Jan Kommandeur
Part of the Nato Advanced Study Institutes Series book series (NSSB, volume 7)


It is in the nature of solid state physics and chemistry that no exact solutions of the equations describing the materials one is working with, can be obtained. The challenge is therefore to select from these equations the terms that are dominant in determining the properties one is considering. For a long time it sufficed in solid state physics to limit oneself to the so-called one-electron terms in the Hamiltonian, i.e. those terms that contain the coordinates of only one electron. This was more by default than by knowledge, the two-electron terms being far too hard to evaluate. In later years, however, it became clear that for a number of properties, such as magnetism and the behavior of the electrical conductivity it was necessary to at least consider the two-electron terms qualitatively. It is not unfair to say that this consideration has been one of the main occupations of theoretical solid state physics for the last decade.


Magnetic Susceptibility Band System Triplet Exciton Frenkel Exciton Peierls Instability 
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Copyright information

© Springer Science+Business Media New York 1975

Authors and Affiliations

  • Jan Kommandeur
    • 1
  1. 1.Laboratory for Physical Chemistry ZernikelaanGroningenthe Netherlands

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