Applied Physics Letters

Modulation of the interlayer Dzyaloshinskii–Moriya interaction by wedging

F F. S. Gao (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,) J J. H. Xia (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,) S S. Q. Liu (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,) R R. Zhang J J. Y. Ou (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,) X X. H. Li C C. H. Wan (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,) G G. Q. Yu (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,) G G. Su (Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences 4 , Beijing 100190,) X X. F. Han (Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,)

Abstract

The interlayer Dzyaloshinskii–Moriya interaction (IL-DMI) has recently attracted extensive interest as an indirect chiral coupling. Effective control requires modulation of both its strength and direction, posing significant challenges. This work experimentally demonstrates a wedge-based approach that modulates IL-DMI in magnetic heterostructures via a thickness gradient. By systematically varying the thickness gradients in the Pt underlayer and spacer layer, we directly tuned the magnitude while preserving the orientation. This wedge-shaped modulation strategy shows promising potential for advanced spintronic devices utilizing IL-DMI.

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Article Details

Volume / Issue Vol. 128, Issue 25
Published June 22, 2026
ISSN 0003-6951
Publisher American Institute of Physics

Journal Info

Applied Physics Letters

American Institute of Physics
ISSN: 0003-6951 Physical Sciences

Authors (10)

F

F. S. Gao

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

J

J. H. Xia

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

S

S. Q. Liu

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

R

R. Zhang

J

J. Y. Ou

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

X

X. H. Li

C

C. H. Wan

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

G

G. Q. Yu

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

G

G. Su

Kavli Institute for Theoretical Sciences, University of Chinese Academy of Sciences 4 , Beijing 100190,

X

X. F. Han

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, University of Chinese Academy of Sciences, Chinese Academy of Sciences 1 , Beijing 100190,

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