Wigner solids of domain wall skyrmions

Abstract

Detection and characterization of a different type of topological excitations, namely the domain wall (DW) skyrmion, has received increasing attention because the DW is ubiquitous from condensed matter to particle physics and cosmology. Here we present experimental evidence for the DW skyrmion as the ground state stabilized by long-range Coulomb interactions in a quantum Hall ferromagnet. We develop an alternative approach using nonlocal resistance measurements together with a local NMR probe to measure the effect of low-current-induced dynamic nuclear polarization and thus to characterize the DW under equilibrium conditions. The dependence of nuclear spin relaxation in the DW on temperature, filling factor, quasiparticle localization, and effective magnetic fields allows us to interpret this ground state and its possible phase transitions in terms of Wigner solids of the DW skyrmion. These results demonstrate the importance of studying the intrinsic properties of quantum states that has been largely overlooked.

arXiv comment42 pages, 16 figures, 1 table

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Cited by in corpus (16)

• Relations among topological solitons
• Domain Wall Skyrmions in Chiral Magnets
• Phase diagram of QCD matter with magnetic field: domain-wall Skyrmion chain in chiral soliton lattice
• Tuning of topological properties in the strongly correlated antiferromagnet Mn${}_3$Sn via Fe doping
• Chiral Magnets from String Theory
• Current-driven motion of magnetic domain-wall skyrmions
• Spin Statistics and Surgeries of Topological Solitons in QCD Matter in Magnetic Field
• Skyrmion crystal phase on a magnetic domain wall in chiral magnets
• Manipulating the internal structure of Bloch walls
• Tuning of Electrical, Magnetic, and Topological Properties of Magnetic Weyl Semimetal Mn${}_{3+x}$Ge by Fe doping
• Creation of domain-wall Skyrmions in chiral magnets
• Domain Wall Networks as Skyrmion Crystals in Chiral Magnets
• Domain wall skyrmion-based magnonic crystal
• Magnetic D-brane solitons: skyrmion strings ending on a Néel wall in chiral magnets
• Fermionic domain-wall Skyrmions of QCD in a magnetic field
• Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization