Abstract
The microstructure and magnetic properties of Ge:Fe thin films grown by molecular-beam epitaxy have been studied by transmission electron microscopy and superconducting quantum interference device magnetometry. Films were deposited on GaAs(001) at substrate temperatures (TS) ranging from 70to400°C. Nanoparticles of ferromagnetic Fe3Ge2 form in a single-crystalline Ge matrix for TS⩾150°C. The evolution of magnetic order has been evaluated as the particle size increases from 2nm at TS=150°C to 15nm at 400°C. The ferromagnetic order of Ge:Fe nanocomposite thin films originates solely from ferromagnetic second-phase particles.
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.
