Abstract
Summary form only given, as follows. Taking into account the appropriate coordinate transformation and charge separation effect, the reduction perturbation method is used to derive an mKdV equation for a multicomponent magnetized plasma having two Maxwellian distributed electrons and two warm adiabatic ions. The double-layer solution of the mKdV equation was considered in detail. It is found that the width of the double layer increases as the obliqueness t is increased, where t is the angle between wave vector and magnetic field, while the effect of obliqueness on the amplitude of the double layer is negligible. The effect of finite ion temperature is to increase (decrease) the amplitude of the compressive (rarefactive) double layer and decrease (increase) its width. The effect of the concentration on second ion purity, and the concentration and the temperature ratios of two electron species on the amplitude and width of the double layer was also studied
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