Multiple Helical Spin Density Waves and Magnetic Skyrmions in Itinerant Electron System

Abstract

Magnetic structures and their stability of the multiple helical spin density waves (MHSDW) and related magnetic skyrmions in itinerant electron system have been investigated on the basis of both the phenomenological and microscopic theories. It is shown by using the Ginzburg-Landau (GL) theory and the Application Visualization System (AVS) that the magnetic skyrmion structures emerge as a MHSDW and can be stabilized in itinerant electron system on the fcc lattice even if there is no Dzyaloshinskii-Moriya interaction. Moreover, by using the generalized Hartree-Fock theory for the Hubbard model, the antiferromagnetic skyrmion structure found in the GL theory is shown to be stabilized on the fcc lattice in the vicinity of the half-filled electron number.

20 pages, 23 figures

References in corpus (5)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Scalar spin chirality and quantum Hall effect on a triangular lattice
• Skyrmions and Anomalous Hall Effect in a Dzyloshinskii-Moriya Spiral Magnet
• Effective bilinear-biquadratic model for noncoplanar ordering in itinerant magnets
• Phenomenological Theory of Multiple Spin Density Waves in fcc Transition Metals

Cited by in corpus (4)

• Itinerancy-dependent non-collinear spin textures in SrFeO3, CaFeO3, and CaFeO3/SrFeO3 heterostructures probed via resonant x-ray scattering
• Skyrmion and vortex crystals in the Hubbard model
• Anisotropic spin model and multiple-$Q$ states in cubic systems
• Numerical Study of Multiple Helical Spin Density Waves and Vortex Spin Structures in Itinerant Electron System