H. B. Brom

DOPANT-INDUCED CROSSOVER FROM 1D TO 3D CHARGE TRANSPORT IN CONJUGATED POLYMERS

The interplay between inter- and intrachain charge transport in bulk polythiophene in the hopping regime has been clarified by studying the conductivity

Metallic state in disordered quasi-one-dimensional conductors

\ensuremath{\sigma}

Effect of dye doping on the charge carrier balance in PPV light emitting diodes as measured by admittance spectroscopy

as a function of frequency

SUPERCONDUCTIVITY IN MISFIT LAYER COMPOUNDS (MS)NTS2

\ensuremath{\omega}/2\ensuremath{\pi}

Doping, density of states, and conductivity in polypyrrole and poly(p-phenylene vinylene)

(up to 3 THz), temperature

Nuclear Spin Dynamics in the Quantum Regime of a Single-Molecule Magnet

T

NMR and susceptibility characterization of two oxocuprates with antiferromagnetic Cu-chains: LiCuO2 and LiCu2O2

, and doping level

Crystal structure and conductivity of the organometallic linear chain system (Et4N)[Ni(dmit)2] and related compounds

c

Spin dynamics and ordering of a cuprate stripe antiferromagnet

. We present a model which quantitatively explains the observed crossover from quasi-one-dimensional transport to three-dimensional hopping conduction with increasing doping level. At high frequencies the conductivity is dominated by charge transport on one-dimensional conducting chains.

Magnetic dipolar ordering and relaxation in the high-spin molecular cluster compound Mn6

The metallic state in conjugated polymers and single-walled carbon nanotubes: is studied by dielectric spectroscopy (8-600 GHz). We have found an intriguing correlation between scattering time (tau) and plasma frequency (omega (p)):tau (proportional to)omega (-1.3)(p). This relation conflicts with the usually applied models that only consider disorder. Based on the observed parallels with doped semiconductors, we argue that the interchain coupling t(perpendicular to) plays a role comparable to the doping level and that the unusual free-carrier dynamics in the metallic state can be explained when including the role of t(perpendicular to) in the conventional models.