CURRENT-DRIVEN PLASMA INSTABILITIES IN LOWER-DIMENSIONAL SYSTEMS

Our earlier work on the possibility of spontaneous generation of plasm a waves in current driven lower dimensional solid state systems is rev iewed and extended, and new directions are suggested. Feasibility of p lasma wave generation has been shown for uniform lower dimensional sys tems, and some modulated systems. The merits and problems for each sys tem are enumerated. New directions to circumvent some of these problem s are suggested. Prospects for experimental verification and potential device applications are discussed. (C) 1995 Academic Press Limited