Research achievements (PUBLICATIONS)

Basic information

Name KODAMA Motoi

Name of dissertation

Real-space observation of magnetic vortex core gyration in a magnetic disc both with and without a pair tag

Name of author

Akinobu Yamaguchi, Hiroshi Hata, Minori Goto, Motoi Kodama, Yuichi Kasatani, Koji Sekiguchi, Yukio Nozaki, Takuo Ohkochi, Masato Kotsugi, Toyohiko Kinoshita

Name of publication

Japanese Journal of Applied Physics

Publisher

The Japan Society of Applied Physics

Volume (No.)

55

Issue (No.)

2

Start page

023002

 

 

End page

 

Publication date

2016-01-13

Presence/absence of peer review

maru

Presence/absence of invitation

Batu

Language of publication used

English

Posting category

Overseas

Type of publication

Research Paper (Scientific Journal)

Type of authorship

Joint Work(other)

ISSN

 

DOI

10.7567/JJAP.55.023002

NAID (CiNii ID)

 

PMID

 

Permalink

URL

Summary

We demonstrate the time-resolved real-space observation of vortex gyration in a magnetic circular disc by X-ray magnetic circular dichroism photoemission microscopy at the SPring-8 beamline BL25SU, both with and without an additional structure called a pair tag, which serves to control the magnetic curling direction. By comparing the gyration orbits of the vortices, we found that the gyration properties are dependent on the presence of the additional structure in spite of the discs having the same diameter. Furthermore, we reproduced the vortex gyration by micromagnetic simulation. The confinement potential of the vortex can be controlled by the additional structure.

Remarks