A Chiral Paramagnetic Skyrmion-like Phase in MnSi

2009/02/20 by C. Pappas, Pappas, C., E. Lelievre-Berna +19 · 1 citation
Materials Science · Physics and Astronomy · #Magnetic properties of thin films #Quasicrystal Structures and Properties #Rare-earth and actinide compounds #cond-mat.other

paper · pdf · doi:10.48550/arxiv.0902.3603

PRL accepted

arxiv created 2009/04/22 · arxiv updated 2009/12/01

Abstract

We present a comprehensive study of chiral fluctuations in the reference helimagnet MnSi by polarized neutron scattering and Neutron Spin Echo spectroscopy, which reveals the existence of a completely left-handed and dynamically disordered phase. This phase may be identified as a spontaneous skyrmion phase: it appears in a limited temperature range just above the helical transition Tc and coexists with the helical phase at Tc.

Cited by

• Exchange tensors, generalized RKKY interactions, and magnetization dynamics in heterostructures of ferromagnets and topological insulators

Related

• Macroscopic evidence of skyrmion lattice inhomogeneity and magnetic vortex states in the A-phase of MnSi
• Chiral fluctuations in MnSi above the Curie temperature measured with polarized inelastic neutron scattering
• Partially disordered state near ferromagnetic transition in MnSi
• Chiral fluctuations in MnSi above Tc
• Exact non-circular symmetric N-skyrmions in helical magnets without inversion symmetry