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Dependence of interfacial Dzyaloshinskii-Moriya interaction and perpendicular magnetic anisotropy on the thickness of the heavy-metal layer

Title
Dependence of interfacial Dzyaloshinskii-Moriya interaction and perpendicular magnetic anisotropy on the thickness of the heavy-metal layer
Authors
Kim, Nam HuiHan, D. S.Jeong, Jin YongPark, Kwon JinSwagten, Henk J. M.Kim, June SeoYou, Chun Yeol
DGIST Authors
Kim, June SeoYou, Chun Yeol
Issue Date
2017-10
Citation
Applied Physics Express, 10(10)
Type
Article
Article Type
Article
Keywords
AnisotropyBrillouin scatteringFerromagnetic materialsFerromagnetismHeavy metalsLight scatteringMagnetismMagnetsPlatinumPlatinum metalsSuperconducting materialsBrillouin light scatteringDzyaloshinskii-Moriya interactionEnergy densityFerromagnetsPerpendicular magnetic anisotropyThickness dependenceMagnetic anisotropy
ISSN
1882-0778
Abstract
The interfacial Dzyaloshinskii-Moriya interaction (iDMI) and the interfacial perpendicular magnetic anisotropy (iPMA) between a heavy metal and ferromagnet are investigated by employing Brillouin light scattering. With increasing thickness of the heavy-metal (Pt) layer, the iDMI and iPMA energy densities are rapidly enhanced and they saturate for a Pt thickness of 2.4 nm. Since these two individual magnetic properties show the same Pt thickness dependence, this is evidence that the iDMI and iPMA at the interface between the heavy metal and ferromagnet, the physical origin of these phenomena, are effectively enhanced upon increasing the thickness of the heavy-metal layer. © 2017 The Japan Society of Applied Physics.
URI
http://hdl.handle.net/20.500.11750/5644
DOI
10.7567/APEX.10.103003
Publisher
Japan Society of Applied Physics
Related Researcher
  • Author You, Chun Yeol Spin Phenomena for Information Nano-devices(SPIN) Lab
  • Research Interests Spintronics; Condensed Matter Physics; Magnetic Materials & Thin Films; Micromagnetic Simulations; Spin Nano-Devices
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles
Emerging Materials ScienceSpin Phenomena for Information Nano-devices(SPIN) Lab1. Journal Articles


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