AC magnetic properties of nanogranular FeCo-AlN films

✍ Scribed by Chayka, O. V. ;Kraus, L. ;Fendrych, F. ;Veljko, S.

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 220 KB
• Volume: 204
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200675321

✦ Synopsis

Abstract

Nanogranular magnetic FeCo–AlN films were fabricated by plasma jet technique. Magnetic anisotropy in the films was induced by applied external magnetic field during the deposition. X‐ray diffraction and chemical analysis revealed that the films consist of crystalline FeCo grains with the size of about 10 nm and amorphous AlN matrix. Hysteresis loops were measured using an AC hysteresis loop tracer at 101 Hz. The frequency dependence of permeability was investigated in the range of 0.1–2 GHz by a strip line permeameter. The highest characteristic frequency at which the natural ferromagnetic resonance occurs is about 1.7 GHz. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)