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The Improvement of Atomic Force Microscope Suitable for Magnetic Domain Structure Measurements

100%
Sveklo I., Dobrogowski W., Kisielewski M., Maziewski A.
Acta Physica Polonica A
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2000
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vol. 97
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issue 3
527-530
EN
Based on commercial Burleigh METRIS^{TM}-2000 Atomic Force Microscope two methods of magnetic force measurements were realised. The developed system was successfully applied for study of magnetic structure of both YIG-garnet and CoNi/Pt magneto-optic multilayers.
2
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The Influence of He^+ Ion Bombardment on Magnetic Properties of NiFe/Au/Co/Au Multilayers

64%
Kuświk P., Szymański B., Urbaniak M., Stobiecki F., Sveklo I., Kisielewski J., Maziewski A., Jagielski J.
Acta Physica Polonica A
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2009
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vol. 115
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issue 1
352-354
EN
The influence of He^+ ion bombardment on magnetoresistance, magnetization reversal and domain structure of sputtered (Ni_{80}Fe_{20}(2 nm)/Au(2 nm)/Co(0.6 nm)/Au(2 nm))_{10} multilayers was investigated. The samples were bombarded using He^+(30 keV) ions with fluences D varied from 10^{13} to 3×10^{16} He^+/cm^{2}. With increasing D the following changes in magnetic properties were observed: (i) exponential decay of the saturation field of Co layers, (ii) progressive decrease in magnetoresistance as a result of degradation of Co layers perpendicular anisotropy, (iii) linear decrease in stripe domain period with log(D).
3
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Modification of Magnetic Properties of Pt/Co/Pt Films by Ga^{+} Ion Irradiation: Focused versus Uniform Irradiation

52%
Sveklo I., Mazalski P., Jaworowicz J., Jamet J., Vernier N., Mougin A., Ferré J., Kisielewski M., Zablotskii V., Bourhis E., Gierak J., Postava K., Fassbender J., Kanak J., Maziewski A.
Acta Physica Polonica A
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2018
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vol. 133
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issue 5
1215-1226
EN
30 keV Ga^{+} irradiation-induced changes of magnetic and magneto-optical properties of sputtered Pt/Co/Pt ultrathin trilayers films have been studied as a function of the ion fluence. Out-of-plane magnetic anisotropy states with enhanced magneto-optical effects were evidenced for specific values of cobalt thickness and irradiation fluence. Results obtained after uniform or quasi-uniform focused ion beam irradiation on either out-of-plane or in-plane magnetized sputtered pristine trilayers are compared. Similar irradiation-induced magnetic changes are evidenced in quasi-uniformly focused ion beam or uniformly irradiated films, grown either by sputtering or molecular beam epitaxy. We discuss on plausible common mechanisms underlying the observed effects.
4
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Magnetic Tailoring of Domains in NiFe/Au/Co/Au Multilayers by He Ion Bombardment through Nanospheres

52%
Glapka W., Kuświk P., Sveklo I., Urbaniak M., Jóźwiak K., Weis T., Engel D., Ehresmann A., Błaszyk M., Szymański B., Maziewski A., Stobiecki F.
Acta Physica Polonica A
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2009
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vol. 115
|
issue 1
348-351
EN
Sputter deposited (Ni_{80}Fe_{20}/Au/Co/Au)_{10} multilayers, characterized by alternating in-plane and perpendicular anisotropies of the NiFe and Co layers, respectively, and out-of-plane stripe (labyrinth) domain structure in the Co layers, were bombarded by He^+-ions (10 keV) through a mask consisting of polystyrene nanospheres with a diameter of 470 nm. The changes of multilayers magnetic properties after ion bombardment are correlated with the used mask structure.
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