Dynamical properties of nanostructured Ferromagnet - Diluted Magnetic Semiconductor Hybrids I


We intend to develop novel ferromagnet-semiconductor hybrid nanostructures and to study their dynamical properties in a wide time range. Our idea is to use a diluted magnetic semiconductor (DMS), where the ionic moments give rise to giant g-factors providing substantial changes in the optical properties, even in the relatively weak stray field of an adjacent ferromagnet (FM).
II-VI DMS heterostructures of optimized design will be grown by molecular beam epitaxy. The use of GaAs substrates allows still integration in III-V technology. The FM layers will be deposited by thermal/electron beam evaporation and sputtering, respectively. Nanolithography will be used to define arrays of FM wires and dots with size dimensions down to below 50 nm.

We intend to develop novel ferromagnet-semiconductor hybrid nanostructures and to study their dynamical properties in a wide time range. Our idea is to use a diluted magnetic semiconductor (DMS), where the ionic moments give rise to giant g-factors providing substantial changes in the optical properties, even in the relatively weak stray field of an adjacent ferromagnet (FM).
II-VI DMS heterostructures of optimized design will be grown by molecular beam epitaxy. The use of GaAs substrates allows still integration in III-V technology. The FM layers will be deposited by thermal/electron beam evaporation and sputtering, respectively. Nanolithography will be used to define arrays of FM wires and dots with size dimensions down to below 50 nm.

Principal investigators
Henneberger, Fritz Prof. Dr. sc. nat. (Details) (Experimental Physics / Physical Foundations of Photonics)

Duration of project
Start date: 08/2002
End date: 12/2004

Last updated on 2022-08-09 at 01:08