Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers
The CoSiB/Pd multilayers with MgO/Pd underlayer were deposited by magnetron sputtering technique on the glass substrate. The effect of MgO underlayer's thickness <i>t</i> on perpendicular magnetic anisotropy of CoSiB/Pd multilayer was studied, and the thermal stability of multilayer...
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doaj-8a434557ee4e40bb99a329b8fe11d0672020-11-25T02:05:10ZzhoJournal of Materials EngineeringJournal of Materials Engineering1001-43811001-43812019-02-01482657020200209Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayersZHAO Ze-jun0LU Xue-peng1LIU Shuai2XI Jian-feng3LI Bao-he4School of Science, Beijing Technology and Business University, Beijing 102488, ChinaSchool of Science, Beijing Technology and Business University, Beijing 102488, ChinaSchool of Science, Beijing Technology and Business University, Beijing 102488, ChinaSchool of Science, Beijing Technology and Business University, Beijing 102488, ChinaSchool of Science, Beijing Technology and Business University, Beijing 102488, ChinaThe CoSiB/Pd multilayers with MgO/Pd underlayer were deposited by magnetron sputtering technique on the glass substrate. The effect of MgO underlayer's thickness <i>t</i> on perpendicular magnetic anisotropy of CoSiB/Pd multilayer was studied, and the thermal stability of multilayers with MgO/Pd underlayer was analyzed. The results show that the performance of PMA of samples improves due to the introduction of the MgO in the bottom layer through the analysis of anomalous Hall effect of samples, when the thickness <i>t</i> of MgO is 3.5 nm, the squareness of the sample is the best. The hysteresis loops of the best sample MgO(3.5 nm)/Pd(3 nm)/[CoSiB(0.5 nm)/Pd(0.8 nm)]<sub>2</sub>/Ta(2 nm) is tested, and the effective magnetic anisotropy constant(<i>K</i><sub>eff</sub>) of the sample reaches 2.0×10<sup>5</sup> J/m<sup>3</sup>. The thermal stability analysis shows that the <i>K</i><sub>eff</sub> reaches the maximum value 2.6×10<sup>5</sup> J/m<sup>3</sup> at the annealing temperature of 200℃; the sample can still maintain good PMA performance, when the annealing temperature reaches 400℃.http://html.rhhz.net/CHXB/html/2020-2-65.htmcosib/pd multilayeranomalous hall effectperpendicular magnetic anisotropyeffective magnetic anisotropy constant |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
ZHAO Ze-jun LU Xue-peng LIU Shuai XI Jian-feng LI Bao-he |
spellingShingle |
ZHAO Ze-jun LU Xue-peng LIU Shuai XI Jian-feng LI Bao-he Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers Journal of Materials Engineering cosib/pd multilayer anomalous hall effect perpendicular magnetic anisotropy effective magnetic anisotropy constant |
author_facet |
ZHAO Ze-jun LU Xue-peng LIU Shuai XI Jian-feng LI Bao-he |
author_sort |
ZHAO Ze-jun |
title |
Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers |
title_short |
Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers |
title_full |
Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers |
title_fullStr |
Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers |
title_full_unstemmed |
Effect of MgO/Pd underlayer on perpendicular magnetic anisotropy and thermal stability of CoSiB/Pd multilayers |
title_sort |
effect of mgo/pd underlayer on perpendicular magnetic anisotropy and thermal stability of cosib/pd multilayers |
publisher |
Journal of Materials Engineering |
series |
Journal of Materials Engineering |
issn |
1001-4381 1001-4381 |
publishDate |
2019-02-01 |
description |
The CoSiB/Pd multilayers with MgO/Pd underlayer were deposited by magnetron sputtering technique on the glass substrate. The effect of MgO underlayer's thickness <i>t</i> on perpendicular magnetic anisotropy of CoSiB/Pd multilayer was studied, and the thermal stability of multilayers with MgO/Pd underlayer was analyzed. The results show that the performance of PMA of samples improves due to the introduction of the MgO in the bottom layer through the analysis of anomalous Hall effect of samples, when the thickness <i>t</i> of MgO is 3.5 nm, the squareness of the sample is the best. The hysteresis loops of the best sample MgO(3.5 nm)/Pd(3 nm)/[CoSiB(0.5 nm)/Pd(0.8 nm)]<sub>2</sub>/Ta(2 nm) is tested, and the effective magnetic anisotropy constant(<i>K</i><sub>eff</sub>) of the sample reaches 2.0×10<sup>5</sup> J/m<sup>3</sup>. The thermal stability analysis shows that the <i>K</i><sub>eff</sub> reaches the maximum value 2.6×10<sup>5</sup> J/m<sup>3</sup> at the annealing temperature of 200℃; the sample can still maintain good PMA performance, when the annealing temperature reaches 400℃. |
topic |
cosib/pd multilayer anomalous hall effect perpendicular magnetic anisotropy effective magnetic anisotropy constant |
url |
http://html.rhhz.net/CHXB/html/2020-2-65.htm |
work_keys_str_mv |
AT zhaozejun effectofmgopdunderlayeronperpendicularmagneticanisotropyandthermalstabilityofcosibpdmultilayers AT luxuepeng effectofmgopdunderlayeronperpendicularmagneticanisotropyandthermalstabilityofcosibpdmultilayers AT liushuai effectofmgopdunderlayeronperpendicularmagneticanisotropyandthermalstabilityofcosibpdmultilayers AT xijianfeng effectofmgopdunderlayeronperpendicularmagneticanisotropyandthermalstabilityofcosibpdmultilayers AT libaohe effectofmgopdunderlayeronperpendicularmagneticanisotropyandthermalstabilityofcosibpdmultilayers |
_version_ |
1724939538384551936 |