JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.4, no.11, pp.1918 - 1923
Abstract
We report a colloidal synthesis and electrical and magnetotransport properties of multifunctional "magnet-in-the-semiconductor" nanostructures composed of FePt core and CdSe or CdS shell. Thin films of all inorganic FePt/CdSe and FePt/CdS core-shell nanostructures capped with In2Se42- molecular chalcogenide (MCC) ligands exhibited n-type charge transport with high field-effect electron mobility of 34 and 0.02 cm(2)/V.s, respectively. These nanostructures also showed a negative magnetoresistance characteristic for spin-dependent tunneling. We discuss the mechanism of charge transport and gating in the arrays of metal/semiconductor core-shell nanostructures.