Magnetic soliton confinement and discretization effects arising from macroscopic coherence in a chiral spin soliton lattice

Y. Togawa, T. Koyama, Y. Nishimori, Y. Matsumoto, S. McVitie, D. McGrouther, R. L. Stamps, Y. Kousaka, J. Akimitsu, S. Nishihara, K. Inoue, I. G. Bostrem, Vl E. Sinitsyn, A. S. Ovchinnikov, J. Kishine

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59 Citations (Scopus)

Abstract

We present how macroscopically coherent ordering within a chiral state can be manifested in the physical properties within the context of an archetypical system - the chiral spin soliton lattice in a monoaxial chiral magnet CrNb3S6. Using magnetotransport measurements and state-of-the-art Lorentz electron microscopy, we demonstrate spin soliton confinement in 1-μm-wide grains with different crystalline chirality and discretized magnetoresistance in 10-μm-wide crystals. Discretization effects are found to be prominent when the system size is reduced to the order of 10μm along the chiral axis. A consequence that we identify is a robust coherence of the chiral soliton lattice against deformation. The spin configuration at the grain boundaries, which leads to soliton confinement, is experimentally clarified.

Original languageEnglish
Article number220412
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number22
DOIs
Publication statusPublished - Dec 17 2015

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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