MAGNETIC BREAKDOWN PHENOMENA IN QUASI-2-DIMENSIONAL ORGANIC CONDUCTORS

Magneto-oscillation phenomena of the magnetization in low dimensional organic conductors (BEDT-TTF)(2)X, are investigated theoretically, foc using on the magnetic breakdown (MB) occured in high fields. Our full quantum mechanical theory reproduces various oscillations, including t he interference difference oscillation, which is prohibited in the so- called network model of semi-classical theory, and demonstrates a smoo th crossover to the MB orbit oscillation, or MB phenomenon. This is in terpreted in terms of the recursive band structures.