Induction Mapping of the 3D-Modulated Spin Texture of Skyrmions in Thin Helimagnets

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2018
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Schneider, Sebastian
Wolf, Daniel
Stolt, Matthew J.
Jin, Song
Pohl, Darius
Rellinghaus, Bernd
Schmidt, Marcus
Büchner, Bernd
Nielsch, Kornelius
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Physical Review Letters. American Physical Society (APS). 2018, 120(21), 217201. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.120.217201
Zusammenfassung

Envisaged applications of Skyrmions in magnetic memory and logic devices crucially depend on the stability and mobility of these topologically nontrivial magnetic textures in thin films. We present for the first time quantitative maps of the magnetic induction that provide evidence for a 3D modulation of the Skyrmionic spin texture. The projected in-plane magnetic induction maps as determined from in-line and off-axis electron holography carry the clear signature of Bloch Skyrmions. However, the magnitude of this induction is much smaller than the values expected for homogeneous Bloch Skyrmions that extend throughout the thickness of the film. This finding can only be understood if the underlying spin textures are modulated along the out-of-plane z direction. The projection of (the in-plane magnetic induction of) helices is further found to exhibit thickness-dependent lateral shifts, which show that this z modulation is accompanied by an (in-plane) modulation along the x and y directions.

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ISO 690SCHNEIDER, Sebastian, Daniel WOLF, Matthew J. STOLT, Song JIN, Darius POHL, Bernd RELLINGHAUS, Marcus SCHMIDT, Bernd BÜCHNER, Sebastian T. B. GOENNENWEIN, Kornelius NIELSCH, 2018. Induction Mapping of the 3D-Modulated Spin Texture of Skyrmions in Thin Helimagnets. In: Physical Review Letters. American Physical Society (APS). 2018, 120(21), 217201. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.120.217201
BibTex
@article{Schneider2018-05-25Induc-51823,
  year={2018},
  doi={10.1103/PhysRevLett.120.217201},
  title={Induction Mapping of the 3D-Modulated Spin Texture of Skyrmions in Thin Helimagnets},
  number={21},
  volume={120},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Schneider, Sebastian and Wolf, Daniel and Stolt, Matthew J. and Jin, Song and Pohl, Darius and Rellinghaus, Bernd and Schmidt, Marcus and Büchner, Bernd and Goennenwein, Sebastian T. B. and Nielsch, Kornelius},
  note={Article Number: 217201}
}
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