Spin Hall torque magnetometry of Dzyaloshinskii domain walls

By S. Emori, E. Martínez, Kyung-Jin Lee, Hyun-Woo Lee, U. Bauer, Sung-Min Ahn, Parnika Agrawal, D. Bono, G. Beach. 2013

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Current-induced domain wall motion in the presence of the Dzyaloshinskii-Moriya interaction (DMI) is experimentally and theoretically investigated in heavy-metal/ferromagnet bilayers. The angular dependence of the current-induced torque and the magnetization structure of Dzyaloshinskii domain walls are described and quantified simultaneously in the presence of in-plane fields. We show that the DMI strength depends strongly on the heavy metal, varying by a factor of 20 between Ta and Pa, and that strong DMI leads to wall distortions not seen in conventional materials. These findings provide essential insights for understanding and exploiting chiral magnetism for emerging spintronics applications.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/01ed10c1668c8288c8c3074d6a1a50d7ebf573b0

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In Atomic and Molecular Physics, and Optics

  1. Wanjun Jiang
  2. S. Velthuis
  3. J. Zang
  4. Gong Chen
  5. Kai Liu
  6. Axel Hoffmann

In Electrical and Electronic Engineering

  1. Wanjun Jiang
  2. S. Velthuis
  3. Gong Chen
  4. J. Zang
  5. Kai Liu
  6. Axel Hoffmann

In Electronic, Optical and Magnetic Materials

  1. Gong Chen
  2. Axel Hoffmann
  3. Wanjun Jiang
  4. J. Zang
  5. S. Velthuis

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