Temat: 75.47.De - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Giant Magnetoresistance of $[Ni_{80}Fe_{20}/Au/Co/Au]_{N}$ Multilayers Deposited on Flexible Substrates
Autorzy:: Gospodarczyk, W.
Urbaniak, M.
Stobiecki, F.
Szymański, B.
Powiązania:: https://bibliotekanauki.pl/articles/1428620.pdf
Data publikacji:: 2012-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.47.De
75.70.Cn
Opis:: Magnetic hysteresis and magnetoresistance of $[Ni_{80}Fe_{20}/Au/Co/Au]_{10}$ multilayers displaying giant magnetoresistance and sputtered on a flexible polypropylene substrates (an adhesive tape) is investigated. The magnetoresistive properties are very similar to those found in films prepared under the same conditions on Si(100) substrates. It is demonstrated, too, that a bendability of the substrates can be utilized to form cylindrically shaped magnetoresistive sensors with reduced anisotropy of the effect.
Źródło:: Acta Physica Polonica A; 2012, 121, 5-6; 1234-1236
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Changes of Structure and Magnetic Properties of $(Ni_{80}Fe_{20}//Au//Co//Au)_N$ Multilayers as a Function of Repetition Number N
Autorzy:: Szymański, B.
Stobiecki, F.
Urbaniak, M.
Siffalovic, P.
Majkova, E.
Powiązania:: https://bibliotekanauki.pl/articles/1813609.pdf
Data publikacji:: 2008-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.47.De
75.70.Cn
Opis:: The influence of repetition number N on magnetoresistance, magnetic reversal and structure of sputtered $(Ni_{80}Fe_{20}//Au//Co//Au)_N$ multilayers was investigated. The multilayers are characterized by in-plane $(Ni_{80}Fe_{20})$ and out-of-plane (Co) magnetic anisotropy of ferromagnetic layers and show considerable magnetoresistance effect (ΔR/R) of the giant magnetoresistance type. Increased N results in an enhancement of ΔR/R from about 0.5% for N=1 up to above 5% for N=15. This enhancement is caused by: diminishing the role of electron scattering at the surfaces, decreasing the effect of structural imperfection and the lack of the perpendicular anisotropy of Co layer in the first period. The interpretation is corroborated by low ΔR/R value observed for N=1 and an evolution of the ΔR(H)/R dependence with increasing N. The anisotropy field of Co layers also increases with N.
Źródło:: Acta Physica Polonica A; 2008, 113, 1; 205-208
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Selective Modification of Magnetic Properties of $Co_1$ /Au/$Co_2$/Au Multilayers by He Ion Bombardment
Autorzy:: Urbaniak, M.
Stobiecki, F.
Engel, D.
Szymański, B.
Ehresmann, A.
Powiązania:: https://bibliotekanauki.pl/articles/1810562.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.80.Jh
75.47.De
75.70.Cn
Opis:: We show that in a $[Co_1//Au//Co_2//Au]_4$ multilayer, where $Co_{1(2)}$ denote Co layers of different thicknesses, a 10 keV He-ion bombardment with a 6×$10^{14}$ ions $cm^{-2}$ dose leads to changes of the easy direction from out-of-plane to in-plane in the thicker Co layers ($t_{Co2}$ = 1 nm) while the perpendicular anisotropy of the thinner Co layers ($t_{Co1}$ = 0.6 nm) is preserved. The investigated multilayers were obtained by sputtering and the thickness of the Au layers ($t_{Au}$ = 4 nm) ensured that a direct coupling between the Co layers (through pinholes) and Ruderman-Kittel-Kasuya-Yosida-like interactions were negligible.
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 326-328
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: The Influence of $He^+$ Ion Bombardment on Magnetic Properties of NiFe/Au/Co/Au Multilayers
Autorzy:: Kuświk, P.
Szymański, B.
Urbaniak, M.
Stobiecki, F.
Sveklo, I.
Kisielewski, J.
Maziewski, A.
Jagielski, J.
Powiązania:: https://bibliotekanauki.pl/articles/1810579.pdf
Data publikacji:: 2009-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.-i
75.47.De
75.30.Gw
75.70.Kw
Opis:: 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).
Źródło:: Acta Physica Polonica A; 2009, 115, 1; 352-354
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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