Abstract
The magnetic properties of single crystals of the organic conductor (Fluoranthene) 2 °+PF 6 − have been analysed by static magnetic susceptibility measurements, ESR, NMR and Overhauser shift technique. Anisotropic molecular diamagnetism, isotropic temperature-dependent conduction electron spin paramagnetism and sample-dependent contribution of paramagnetic defects can be distinguished in the static susceptibility. Defects are of decisive importance for the electron spin dynamics in this highly-1D conductor. They lead to pronounced orientation-, frequency- and temperature-dependences of the electron-spin relaxation times and to a sample dependence of the low-frequency proton spin-lattice relaxation time.
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