NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Surface Morphology Dependent Magnetic Thin Film Growth: Fe on GaN(0001)

Published

Author(s)

P Ryan, R A. Rosenberg, D J. Keavney, J W. Freeland, Joseph Woicik

Abstract

Iron deposition on ordered and disordered GaN (0001) surfaces result in dramatically different magnetic over-layer characteristics. On the ordered surface, nitrogen rapidly desorbs upon Fe deposition and a magnetically disordered film is produced. Concurrently a displaced gallium film localizes at the interface protecting the substrate. The disordered surface has a Ga rich surface acting as a nitrogen diffusion barrier protecting the substrate from iron exposure and furthermore, it induced island like growth. The Fe islands coalesced at approximately 12 coverage and the resulting film is found to have an average magnetic moment of 2.02 in good agreement with bulk
Citation
Physical Review B (Condensed Matter and Materials Physics)
Pub Type
Journals

Keywords

gallium, GaN, low energy electron diffraction (LEED), x-ray magnetic circular dichroism (XMCD)
Ceramics and Biomaterials

Citation

Ryan, P. , Rosenberg, R. , Keavney, D. , Freeland, J. and Woicik, J. (2021), Surface Morphology Dependent Magnetic Thin Film Growth: Fe on GaN(0001), Physical Review B (Condensed Matter and Materials Physics) (Accessed October 13, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created October 12, 2021
Was this page helpful?