Low-field non-resonant microwave absorption in glass-coated Co-rich microwires

✍ Scribed by Valenzuela, Raul ;Montiel, Herlinda ;Alvarez, Guillermo ;Zamorano, Rafael

• Book ID: 105365292
• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 356 KB
• Volume: 206
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200881268

✦ Synopsis

Abstract

A study of low‐field non‐resonant microwave absorption (LFA) at 9.8 GHz, on as‐cast amorphous Co‐rich CoFeBSi microwires under different measuring geometries is presented. Results confirm that LFA is associated with the magnetization processes from the unmagnetized state (H~DC~ = 0) to the saturated condition, in many aspects similar to Giant Magnetoimpedance (GMI), and clearly different from ferromagnetic resonance (FMR). LFA signal showed large variations in its maximum–minimum separation as a function of the measuring geometry, which is interpreted in terms of the total anisotropy in the process. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)