Microwave magnetoresistance in Ge:Mn nanowires and nanofilms

Abstract

The Lorentzian and spin-scattering components of magnetoresistance were found and distinguished in Ge:Mn thin films. The suppression of microwave magnetoresistance by the limitation of the dimensionality of Ge nanowires doped with Mn has been revealed. Spin-wave resonance in the long-ordered magnetic state and ferromagnetic resonance in GeMn clusters have been detected.

Keywords

• spin waves
• magnetic diluted semiconductors
• nanostructures
• spin dynamics
• magnetoresistance