Effect of GMR and magnetization reversal on microwave absorption
J. Dubowik1 , F. Stobiecki1 , I. Gosciańska2
1 Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
2 Department of Physics, Adam Mickiewicz University, ul. Umultowska 85, 61-614, Poznań , Poland
Czechoslovak Journal of Physics, 51 (2001)
Low-field microwave absorption has been measured as a function of magnetic field in a series of thin film structures exhibiting or not exhibiting the giant magnetoresistance effect (GMR). Although a close correlation has been found between the microwave absorption and GMR, an additional absorption due to magnetization reversal is shown to have substantial effect on the overall microwave response.