Thermal Annealing Effects on the Interfacial Dzyaloshinskii?Moriya Interaction Energy Density and Perpendicular Magnetic Anisotropy

Title
Thermal Annealing Effects on the Interfacial Dzyaloshinskii?Moriya Interaction Energy Density and Perpendicular Magnetic Anisotropy
Authors
한동수Jaehun ChoNam-Hui KimJinyong JungHenk J. M. SwagtenJune-Seo KimChun-Yeol You
Issue Date
2018-06
Publisher
IEEE transactions on magnetics
Citation
VOL 54-4
Abstract
We investigate the interfacial Dzyaloshinskii-Moriya interaction (iDMI) and the perpendicular magnetic anisotropy (PMA) in the annealed inversion symmetry breaking structures (Pt/Co (CoFeB)/AlOx and Ta/CoFeB/AlOx) by Brillouin light scattering. The iDMI energy density of Pt/Co and Pt/CoFeB samples decreases while increasing annealing temperature, but the iDMI energy density of Ta/CoFeB sample slightly increases by increasing annealing temperature. By applying the thermal annealing process, PMA energies slightly increase at the Pt/Co interface; however, Pt/CoFeB, (Ta/CoFeB) structures are dramatically decreased (increased) by the annealing process. The effects of the annealing show complicate variation for iDMI and PMA for each structure; however, we find overall weak correlations between iDMI and PMA despite different materials and annealing process.
URI
http://pubs.kist.re.kr/handle/201004/70759
ISSN
0018-9464
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE