On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers

Magnetization reversal in ultrathin Pt(10 nm)/Co(0.6 nm)/Pt(3 nm) magnetic films and Pt(10 nm)/[Co(d)/Pt(1 nm)]n/ Pt(2 nm) (d = 0.4, 0.6, 0.8 nm, n = 2, 4) multilayers with perpendicular anisotropy has been studied using Kerr microscopy. These materials demonstrate unusual effects of activity asymme...

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Бібліографічні деталі
Дата:2008
Автори: Iunin, Yu.L., Kabanov, Yu.P., Nikitenko, V.I., X.M. Cheng, Shapiro, A.J., C.L. Chien, Shull, R.D.
Формат: Стаття
Мова:English
Опубліковано: НТК «Інститут монокристалів» НАН України 2008
Назва видання:Functional Materials
Теми:
Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/137227
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers / Yu.L. Iunin, Yu.P. Kabanov, V.I. Nikitenko, X.M. Cheng, A.J. Shapiro, C.L. Chien, R.D. Shull // Functional Materials. — 2008. — Т. 15, № 1. — С. 51-55. — Бібліогр.: 12 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id irk-123456789-137227
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spelling irk-123456789-1372272018-06-18T03:06:53Z On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers Iunin, Yu.L. Kabanov, Yu.P. Nikitenko, V.I. X.M. Cheng Shapiro, A.J. C.L. Chien Shull, R.D. Characterization and properties Magnetization reversal in ultrathin Pt(10 nm)/Co(0.6 nm)/Pt(3 nm) magnetic films and Pt(10 nm)/[Co(d)/Pt(1 nm)]n/ Pt(2 nm) (d = 0.4, 0.6, 0.8 nm, n = 2, 4) multilayers with perpendicular anisotropy has been studied using Kerr microscopy. These materials demonstrate unusual effects of activity asymmetry of nucleation centers and domain wall motion. The field dependences of these effects have been studied and the asymmetry of the domain wall nucleation has been found to be suppressed by application of a magnetic field much stronger than the sample coercivity. The asymmetry comes back after several reversals at a lower field magnitude. The asymmetry of domain wall velocity decreases abruptly and vanishes as the reversal field increases in low coercivity ultrathin Co films. The effect recovers as in the reversal field value decreases. A role of the Co/Pt interface defects and nonlinear spin excitations in these phenomena is discussed. 2008 Article On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers / Yu.L. Iunin, Yu.P. Kabanov, V.I. Nikitenko, X.M. Cheng, A.J. Shapiro, C.L. Chien, R.D. Shull // Functional Materials. — 2008. — Т. 15, № 1. — С. 51-55. — Бібліогр.: 12 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/137227 en Functional Materials НТК «Інститут монокристалів» НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Characterization and properties
Characterization and properties
spellingShingle Characterization and properties
Characterization and properties
Iunin, Yu.L.
Kabanov, Yu.P.
Nikitenko, V.I.
X.M. Cheng
Shapiro, A.J.
C.L. Chien
Shull, R.D.
On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers
Functional Materials
description Magnetization reversal in ultrathin Pt(10 nm)/Co(0.6 nm)/Pt(3 nm) magnetic films and Pt(10 nm)/[Co(d)/Pt(1 nm)]n/ Pt(2 nm) (d = 0.4, 0.6, 0.8 nm, n = 2, 4) multilayers with perpendicular anisotropy has been studied using Kerr microscopy. These materials demonstrate unusual effects of activity asymmetry of nucleation centers and domain wall motion. The field dependences of these effects have been studied and the asymmetry of the domain wall nucleation has been found to be suppressed by application of a magnetic field much stronger than the sample coercivity. The asymmetry comes back after several reversals at a lower field magnitude. The asymmetry of domain wall velocity decreases abruptly and vanishes as the reversal field increases in low coercivity ultrathin Co films. The effect recovers as in the reversal field value decreases. A role of the Co/Pt interface defects and nonlinear spin excitations in these phenomena is discussed.
format Article
author Iunin, Yu.L.
Kabanov, Yu.P.
Nikitenko, V.I.
X.M. Cheng
Shapiro, A.J.
C.L. Chien
Shull, R.D.
author_facet Iunin, Yu.L.
Kabanov, Yu.P.
Nikitenko, V.I.
X.M. Cheng
Shapiro, A.J.
C.L. Chien
Shull, R.D.
author_sort Iunin, Yu.L.
title On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers
title_short On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers
title_full On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers
title_fullStr On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers
title_full_unstemmed On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers
title_sort on the nature of asymmetry of nucleation centers activity in ultrathin co films and co/pt multilayers
publisher НТК «Інститут монокристалів» НАН України
publishDate 2008
topic_facet Characterization and properties
url http://dspace.nbuv.gov.ua/handle/123456789/137227
citation_txt On the nature of asymmetry of nucleation centers activity in ultrathin Co films and Co/Pt multilayers / Yu.L. Iunin, Yu.P. Kabanov, V.I. Nikitenko, X.M. Cheng, A.J. Shapiro, C.L. Chien, R.D. Shull // Functional Materials. — 2008. — Т. 15, № 1. — С. 51-55. — Бібліогр.: 12 назв. — англ.
series Functional Materials
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AT kabanovyup onthenatureofasymmetryofnucleationcentersactivityinultrathincofilmsandcoptmultilayers
AT nikitenkovi onthenatureofasymmetryofnucleationcentersactivityinultrathincofilmsandcoptmultilayers
AT xmcheng onthenatureofasymmetryofnucleationcentersactivityinultrathincofilmsandcoptmultilayers
AT shapiroaj onthenatureofasymmetryofnucleationcentersactivityinultrathincofilmsandcoptmultilayers
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AT shullrd onthenatureofasymmetryofnucleationcentersactivityinultrathincofilmsandcoptmultilayers
first_indexed 2025-07-10T03:29:07Z
last_indexed 2025-07-10T03:29:07Z
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