Scattering interchain

Thus, the application of the Bragg s equation to the scattering peak at20 = 18 and applying a correction of 20% yields an interchain distance ca 6A. As a function of the degree of sulpho-nation and relative humidity, this distance appears to be constant. 

Extensive studies of the temperature dependence of the PD have been made by DXS and neutron scattering experiments.34-36 The PD at room temperature is incommensurate with the basic lattice with a repeat distance of 6.67 dpt—pt. At room temperature there is little correlation between the chains whereas at 37 K the PD/CDWs are partially ordered in three dimensions. At 80 K the correlation length along the chains is over 100 Pt atoms whereas the interchain correlation length is only about five interchain spacings.35... 

In principle, intrachain contraction should occur before interchain association as long as the solution is sufficiently dilute. The limitation is the sensitivity of our detection in laser fight scattering. Note that in Fig. 27,... 

The high concentration method is used, here, to extract single-chain, interchain and total scattering structure facrtors. The scattering cross section for each sample is given by ... 

The transverse charge motion is incoherent for a quasi-one-dimensional conductor as long as the condition h hiT is fulfilled (where the intrachain scattering time provides a broadening to the quasi-one-dimensional Fermi surface). This situation is encountered at high temperature. The interchain hopping rate is thus determined by the one-dimensional Fermi golden rule [60] ... 

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