DILUTED MAGNETIC SEMICONDUCTOR NANOWIRES EXHIBITING MAGNETORESISTANCE

摘要

Way catalyst to synthesize the nanowire-to provide a coated substrate, a chloride-based vapor transport semiconductor by-based solution and the impurities-lean by a base solution beating at least a portion of the substrate a magnetic semiconductor (DMS) nano It is to disclose a method for processing a wire. By using the phase-based chemical vapor transport, monocrystals dilute magnetic semiconductor nanowires Ga _1- - this new chloride is synthesized Mn _x N _x (x = 0.07). Having a length of 10㎚ to 100㎚ diameter and up to several tens of micrometers, nanowires are ferromagnetic and 250K to the Curie temperature of not less than room temperature exhibit magnetoresistance.