-A A +A
We present a ferromagnetic resonance (FMR) study of Fe films with thicknesses between 5 and 70 nm prepared by electron‐beam evaporation on top of hexagonal GaN(0001). X‐ray diffraction (XRD) and low‐energy electron diffraction (LEED) suggest the growth in crystallographic Fe(110) domains with three different orientations. The magnetic properties have been investigated by in‐plane angle‐dependent FMR at frequencies between 4.5 to 24 GHz. All samples show a hexagonal in‐plane anisotropy with the easy axes oriented parallel to the Fe [001] directions. The anisotropy field strength of about 8 mT reveals a bulk‐like thickness dependence. Therefore, we can exclude the following origins of anisotropy: (i) interface effects because of the bulk‐like thickness dependence and (ii) averaged first order cubic or uniaxial anisotropies arising from the three grain orientations because of the relative strengths. We …
Publication date: 
1 May 2006

M Buchmeier, DE Bürgler, PA Grünberg, CM Schneider, R Meijers, R Calarco, C Raeder, M Farle

Biblio References: 
Volume: 203 Issue: 7 Pages: 1567-1572
physica status solidi (a)