Magnetic Properties of Thin Films of Fe-Cu-R-Si-B Alloys with R = Nd, Gd, Ho, Y |
| I. Gościańska Institute of Physics, A. Mickiewicz University, Matejki 48/49, 60-769 Poznań, Poland H. Ratajczak, M. Urbaniak Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17/19, 60-179 Poznań, Poland and M. Konč Department of Experimental Physics, P.J. Šafarik University, Košice, Slovakia |
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| Hysteresis loops of thin films of Fe73.5Cu1R3Si13.5B9 (R = Nd, Gd, Ho, Y) alloys were studied by the magnetooptical Faraday method. The films were deposited by flash evaporation technique onto cooled glass substrates. Lanthanides were chosen as substitutes for niobium in the FINEMET type alloys. Coercivity, Hc, was determined from the easy- and hard-axis hysteresis loops. The as-deposited films containing Gd and Ho are characterized by rather low values of Hc while the films with Nd and Y show a high isotropic value of Hc. Attempts were made to determine the conditions of the film annealing which would ensure the optimum soft magnetic properties of the films studied. |
| DOI: 10.12693/APhysPolA.91.237 PACS numbers: 75.70.-i, 68.55.-a |