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The 141st AMCP Open Seminar

Role of atomic-layer stacking to magnetocrystalline anisotropy in metal thin-films

Schedules 2019.03.25 Finished


Date & Time

Monday, March 25, 2019, 15:00-16:00

Venue

National Institute for Materials Science (NIMS)
Sengen Main Bldg. 8F Middle Seminar Room → access

Registration

Pre-registration is not required.
For inquiries, please contact the Administrative Office.
This lecture is open to the public. Your participation is strongly encouraged.

Speaker

Kohji Nakamura, Associate Professor (Graduate School of Engineering, Mie University, Japan)

Title

Role of atomic-layer stacking to magnetocrystalline anisotropy in metal thin-films

Abstract

Efforts in searching materials with a large perpendicular magnetic anisotropy (PMA) have continued in multilayer thin films in which the PMA may be achieved by tuning atomic-layer alignments.[1] Here, by using film full-potential linearized augmented plane wave method,[2] the role of atomic-layer stacking to the magnetocrystalline anisotropy (MCA) in metal thin films is presented. First, the effect of structural asymmetry to the MCA of Co-Pt/Pd-based multilayers is discussed, where an asymmetric stacking, i.e. the Co/Pd/Pt-multilayer, induces a large PMA compared to that of the symmetric Co/Pt and Co/Pd multilayers. Next, the atomic-layer alignment dependence to the MCA in the Co-Fe multilayers on MgO(001) is analyzed. It is indeed found that although the MCA complicatedly behaves to the atomic-layer alignments, there is a key atomic-layer alignment for the large PMA.

[1] K. Hotta, et.al., PRL110, 267206 (2013).
[2] K. Nakamura, et. al., PRB67, 014420 (2003).


Summary

Event Title
The 141st AMCP Open Seminar
Role of atomic-layer stacking to magnetocrystalline anisotropy in metal thin-films
Venue
National Institute for Materials Science (NIMS)
Sengen Central Building 8F Middle Seminar Room
Schedules Hours
2019.03.25
15:00-16:00
Registration Fee
Free

Contact

Research Center for Advanced Measurement and Characterization Administrative Office
National Institute for Materials Science
1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
Tel:81-29-859-2643/2839
Fax:81-29-859-2801
E-Mail: amc=ml.nims.go.jp(Please change "=" to "@")
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