Acta Materialia, volume 241, pages 118383
Compositional gradient induced enhancement of Dzyaloshinskii–Moriya interaction in Pt/Co/Ta heterostructures modulated by Pt–Co alloy intralayers
Park Chun Ho
1, 2
,
Kim Tae Hyun
1
,
Kim Dong Won
1
,
Bessonov V. D.
3
,
Telegin A. V.
3
,
Iliushin I. G.
4
,
Yudin Dmitry
5
,
Ognev Alexey V
4
,
Cho Jiung
6
,
1
Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
|
6
Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Republic of Korea
|
Publication type: Journal Article
Publication date: 2022-12-01
Metals and Alloys
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Polymers and Plastics
Abstract
The Dzyaloshinskii–Moriya interaction (DMI) is an antisymmetric exchange in magnetic structures with broken inversion symmetry. In magnetic heterostructures, the bulk DMI may co-exist with the conventional interfacial DMI contributing to the chiral magnetic behavior of the system. Here, we report the enhancement of DMI in Pt/Co heterostructures wherein Pt-Co alloy intralayers with compositional gradients are sandwiched between Pt and Co. Due to the composition gradient-induced bulk magnetic asymmetry and the face-centered cubic ( fcc ) (111) multilayer crystal structure, the DMI shows a complex behavior attributed to both the interfacial (i-DMI) and bulk-like (b-DMI) contributions. While the b-DMI is defined by the presence of composition differences and structure symmetry, the i-DMI hosts the interfacial contributions in the multilayer structure. Our approach allows the creation of graded magnetic thin films, where the structural inversion symmetry is broken solely due to the predefined compositional gradient of an intralayer, thereby giving rise to an ‘all-interface-bulk’ DMI with the controllable spatial distribution.
Citations by journals
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1
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Nano Letters
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Nano Letters
1 publication, 16.67%
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ACS Applied Electronic Materials
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ACS Applied Electronic Materials
1 publication, 16.67%
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Journal of Magnetism and Magnetic Materials
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Journal of Magnetism and Magnetic Materials
1 publication, 16.67%
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Journal of Superconductivity and Novel Magnetism
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Journal of Superconductivity and Novel Magnetism
1 publication, 16.67%
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Progress in Materials Science
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Progress in Materials Science
1 publication, 16.67%
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Annalen der Physik
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Annalen der Physik
1 publication, 16.67%
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1
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Citations by publishers
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1
2
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American Chemical Society (ACS)
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American Chemical Society (ACS)
2 publications, 33.33%
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Elsevier
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Elsevier
2 publications, 33.33%
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Springer Nature
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Springer Nature
1 publication, 16.67%
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Wiley
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Wiley
1 publication, 16.67%
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1
2
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- We do not take into account publications that without a DOI.
- Statistics recalculated only for publications connected to researchers, organizations and labs registered on the platform.
- Statistics recalculated weekly.
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Park C. H. et al. Compositional gradient induced enhancement of Dzyaloshinskii–Moriya interaction in Pt/Co/Ta heterostructures modulated by Pt–Co alloy intralayers // Acta Materialia. 2022. Vol. 241. p. 118383.
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Park C. H., Kim T. H., Kim D. W., Bessonov V. D., Telegin A. V., Iliushin I. G., Pervishko A. A., Yudin D., Samardak A. Yu., Ognev A. V., Samardak A. S., Cho J., Kim Y. K. Compositional gradient induced enhancement of Dzyaloshinskii–Moriya interaction in Pt/Co/Ta heterostructures modulated by Pt–Co alloy intralayers // Acta Materialia. 2022. Vol. 241. p. 118383.
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TY - JOUR
DO - 10.1016/j.actamat.2022.118383
UR - https://doi.org/10.1016%2Fj.actamat.2022.118383
TI - Compositional gradient induced enhancement of Dzyaloshinskii–Moriya interaction in Pt/Co/Ta heterostructures modulated by Pt–Co alloy intralayers
T2 - Acta Materialia
AU - Park, Chun Ho
AU - Kim, Tae Hyun
AU - Kim, Dong Won
AU - Bessonov, V. D.
AU - Telegin, A. V.
AU - Iliushin, I. G.
AU - Pervishko, Anastasiia A
AU - Yudin, Dmitry
AU - Samardak, Aleksei Yu
AU - Ognev, Alexey V
AU - Samardak, Alexander S.
AU - Cho, Jiung
AU - Kim, Young Keun
PY - 2022
DA - 2022/12/01 00:00:00
PB - Elsevier
SP - 118383
VL - 241
SN - 1359-6454
ER -
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@article{2022_Park,
author = {Chun Ho Park and Tae Hyun Kim and Dong Won Kim and V. D. Bessonov and A. V. Telegin and I. G. Iliushin and Anastasiia A Pervishko and Dmitry Yudin and Aleksei Yu Samardak and Alexey V Ognev and Alexander S. Samardak and Jiung Cho and Young Keun Kim},
title = {Compositional gradient induced enhancement of Dzyaloshinskii–Moriya interaction in Pt/Co/Ta heterostructures modulated by Pt–Co alloy intralayers},
journal = {Acta Materialia},
year = {2022},
volume = {241},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016%2Fj.actamat.2022.118383},
pages = {118383},
doi = {10.1016/j.actamat.2022.118383}
}