TY - JOUR
T1 - Buffer layer effect on magnetic domain structure and coercivity in epitaxial Co/Pt multilayers
AU - Wu, Te Ho
AU - Huang, J. C.A.
AU - Wu, L. C.
AU - Ye, L. X.
AU - Lu, J. Q.
N1 - Funding Information:
We are grateful to Professor C.H. Lee of the Tsing-Hwa University in Hsin-Chu for the measurements of crystalline structures. This work is supported by the National Science Council, the Republic of China, under Contract No. NSC 87-2112-M-224-001.
PY - 1999
Y1 - 1999
N2 - Multilayers of Co/Pt on different buffer layers have been made using molecular beam epitaxy. Observation of magnetic domains on Co/Pt multilayers indicates that the size of domains as well as their growth strongly depend on the buffer layers. The layer structures used in this study are Al2O3(11-20)/y/[Co(0.3 nm)/Pt(1 nm)] × 30, where y represents Mo(20 nm), Mo(20 nm)/Pt(20 nm), and Pt(20 nm). The growth of domains all show wall motion dominate behavior. Domain displacement of samples with a Mo buffer layer appeared to grow along the crystalline orientation. The film with no buffer layer showed the most irregular boundary domains compared to other films. The average domain width was between 1.56 and 0.80 μm. In addition, we have found that the coercivity of Co/Pt film was enhanced particularly by using a Mo/Pt buffer layer.
AB - Multilayers of Co/Pt on different buffer layers have been made using molecular beam epitaxy. Observation of magnetic domains on Co/Pt multilayers indicates that the size of domains as well as their growth strongly depend on the buffer layers. The layer structures used in this study are Al2O3(11-20)/y/[Co(0.3 nm)/Pt(1 nm)] × 30, where y represents Mo(20 nm), Mo(20 nm)/Pt(20 nm), and Pt(20 nm). The growth of domains all show wall motion dominate behavior. Domain displacement of samples with a Mo buffer layer appeared to grow along the crystalline orientation. The film with no buffer layer showed the most irregular boundary domains compared to other films. The average domain width was between 1.56 and 0.80 μm. In addition, we have found that the coercivity of Co/Pt film was enhanced particularly by using a Mo/Pt buffer layer.
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U2 - 10.1016/S0304-8853(98)00499-5
DO - 10.1016/S0304-8853(98)00499-5
M3 - Article
AN - SCOPUS:0033100348
SN - 0304-8853
VL - 193
SP - 136
EP - 139
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1-3
ER -