Abstract
Abstract A comparison between dewetting properties of amorphous Ge and GeMn layers on SiO 2 , followed by a detailed study of magnetic and structural properties of GeMn nanocrystals (NCs), is done by means of several characterization techniques. The formation of three-dimensional Ge and GeMn NCs by solid-state dewetting process was evidenced by transmission electron microscopy. Studying the dewetting morphologies revealed a weak dependence on the Mn content. We show that the size of the dewetted NCs is proportional to the initial film thickness. SQUID measurements of GeMn NCs show the ferromagnetic behavior of Mn 5 Ge 3 phase with Curie temperature at 300 K. Raman spectroscopy was performed for GeMn self-assembled NCs in order to investigate the effects of Mn-doping and the nature of the capping layer on the strain level.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
