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The study of magnetic domain development in shielding films using MFM technique

Ozimek M., Sikora A., Wilczyński W.

Przegląd Elektrotechniczny

2013

R. 89, nr 8

208--210

In the article we’ve described results of the research aimed on recognition magnetic domain structures of thin magnetic film that can be used as a shield. By correlating magnetic domain structures with macroscopic properties of the film, we can implement a new approach, where the large group of small samples is used to select limited group of large samples in order to perform final tests and select the solution suitable for mass production.

W artykule zostały opisane wyniki badań mających na celu wskazanie możliwości zastosowania mikroskopii sił magnetycznych w opisywaniu cienkich warstw magnetycznych, stosowanych w ekranowaniu pola elektromagnetycznego.

Magnetic domain structure of the intermetallic RMn2Ge2 compounds (R identical to La, Ce, Pr, Nd).

Przybył A., Wysłocki J. J., Pawlik P., Szymura S., Levin E. M.

Inżynieria Materiałowa

1998

R. XIX, nr 4

836-839

Applying the powder pattern method the magnetic domain structures of the polycrystalline intermetallic RMn2Ge2 (where R identical to La, Ce, Pr, Nd) compounds were studied on the grain surfaces parallel and perpendicular to the easy direction of magnetization. The domain structures observed are typical for uniaxial materials. The domain wall energy density gamma was determined from the dependence of the domain width D on the crystal thickness L in the magnetically preferred direction, applying different models of the domain structure. A good agreement was obtained between the values of the domain wall energy as determined from the Kittel's model (gamma = 6,2 mJ/m3) and Hubert's model (gamma = 6,4 mJ/m3 for the LaMn2Ge2 compound.