L10 Ordering and Microstructure of FePd Epitaxial Film with Pt Additive
EMSL Project ID
46592
Abstract
Nowadays, perpendicular magnetic anisotropic (PMA) system draws much attention due to its promising application in Bit Patterned Media (BPM) as the next generation of ultrahigh density magnetic recording. However, L10 chemical ordered FePd, with magnetic properties similar to FePt, draws little attention. Our work focuses on the fundamental physics of hard magnets and the structure-property correlations in epitaxial thin films and thin-film nanostructures. Specifically, our study of L10 FePd epitaxial system on MgO(001) substrate with Pt additive, shows some remarkable results. Our work will impact the understanding of PMA epitaxial system and related hard magnets. It will also advance potential application of L10 FePd in next generation of magnetic recording. For this purpose, we require some specialized X-ray diffraction measurements to complete our recent studies on the L10 FePd epitaxial films. Rapid Access to EMSL facilities is requested to provide data for a graduate student's Oral Qualifying Examination in January 2012. In this sense, specialized measurements are desirable by Dec. 20th so that they can be incorporated into material for the Examination and for immediate publication in the scientific literature.A key aspect of this project is to investigate the epitaxy and crystal structure and their influence on the magnetic properties of metallic thin films and thin-film nanostructures. Different kinds of measurements as well as preliminary structural determination are performed in our laboratory at the University of Washington. Texture measurement such as phi-scans and rocking curves, providing more detailed information on the structure and epitaxy, will be achieved in the EMSL by the four-circle X-ray diffraction.
Project Details
Project type
Limited Scope
Start Date
2011-11-23
End Date
2012-01-22
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members