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Skyrmions and Electric Currents in Metallic Materials

  • Shinichiro Seki
  • Masahito Mochizuki
Chapter
  • 1.5k Downloads
Part of the SpringerBriefs in Physics book series (SpringerBriefs in Physics)

Abstract

In metallic materials, non-collinear or non-coplanar spin textures such as skyrmions, helices or domain walls give rise to intriguing phenomena via coupling to conduction electrons. In this chapter, we introduce the emergent electromagnetic fields generated by a skyrmion spin texture acting on conduction electrons. These cause the topological Hall effect and the electric-current-driven motion of skyrmions with a significantly small threshold current density jc of 105–106 A/m2, which is five or six orders of magnitude smaller than that of a ferromagnetic domain wall and a helical magnetic structure.

Keywords

Domain Wall Berry Phase Local Magnetisation Threshold Current Density Magnetic Domain Wall 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Shinichiro Seki
    • 1
  • Masahito Mochizuki
    • 2
  1. 1.Center for EmergentMatter Science (CEMS)RIKENWakoJapan
  2. 2.Department of Physics and MathematicsAoyama Gakuin UniversitySagamiharaJapan

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