Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Entire DC Network
Ferromagnetism In Al1−Xcrxn Thin Films By Density Functional Calculations, Q. Wang, A. K. Kandalam, Q. Sun, Puru Jena
Ferromagnetism In Al1−Xcrxn Thin Films By Density Functional Calculations, Q. Wang, A. K. Kandalam, Q. Sun, Puru Jena
Physics Publications
We report the results of a theoretical study of magnetic coupling between Cr atoms doped in bulk AlN as well as AlN (112¯0) thin films having wurtzite structure. The calculations are based on density fuctional theory with the generalized gradient approximation to the exchange and correlation potential. In the thin film, modeled by a slab of finite thickness, Cr atoms are found to cluster around N on the surface layer and couple ferromagnetically. The results for the Cr-doped AlN crystal are similar, namely, Cr atoms cluster around N and couple ferromagnetically. In the thin film, the preference of Cr to …