Laser Ablated Pure Non-Crystalline Co Thin Films for Inductors for Ultra-High Frequencies
Abstract
Non-crystalline Co thin films have been prepared by pulsed laser ablation deposition. From the M-H hysteresis loops measurements, a soft magnetic behavior is observed. Neel type magnetic domain walls are observed in the as-deposited films. The spontaneous magnetization, M(sub s) (T = 300 K), is approx. 860 emu/cu cm. After annealing at 500 deg C, M(sub s) (T = 300 K) is approx. 1460 emu/cu cm. The extrapolated to zero K resistance decreases almost two orders of magnitude from the as deposited samples to the crystallized heated at 500 deg C ones. A trilayer Co/Cu/Co has shown a real part magnetic susceptibility of 120 at 100 MHz. In the 100 MHz to 1 GHz frequency range, a perpendicular bias magnetic field increased this value up to 270, remaining almost constant for all range.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2001
- Accession Number
- ADP012271
Entities
People
- C. Favieres
- J. Vergara
- V. Madurga
Organizations
- Public University of Navarre