QUANTIZED DENSITY WAVE ORDERING INDUCED BY A MAGNETIC FIELD IN QUASI ONE-DIMENSIONAL CONDUCTORS IN THE WEAK COUPLING LIMIT

Abstract

A theoretical description of the Density Wave ordered phases induced by a magnetic field in quasi-1D conductors is given in the weak coupling limit. Within each phase, labelled by a quantum number, the wave vector is quantized. Density wave ordering and orbital quantization open a series of gaps in the quasi particle spectrum. Specific heat jump at the metal-Density Wave critical line, behaviour of the electronic gaps and of the order parameter, first order transitions between different Density Wave Phases are studied. Departures from BCS theory are discussed.