Zero-field 29Si nuclear magnetic resonance signature of helimagnons in MnSi

Abstract

The low temperature dependence of the nuclear magnetic resonance frequency and spin-lattice relaxation rate measured in the chiral magnet MnSi by Yasuoka and coworkers [J. Phys. Soc. Jpn. 85, 073701 (2016)] is interpreted in terms of helimagnon excitations. The theoretically predicted gapless and anisotropic dispersion relation which is probed at extremely small energy is experimentally confirmed. Whenever comparison is possible, the results are found quantitatively consistent with those of the inelastic neutron scattering and muon spin rotation and relaxation techniques. Further studies are suggested.

6 pages, 3 figures

References in corpus (5)

• Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
• Fluctuation-induced first-order phase transition in Dzyaloshinskii-Moriya helimagnets
• Magnon dispersion shift in the induced-ferromagnetic phase of the noncentrosymmetric MnSi
• Understanding the $\mu$SR spectra of MnSi without magnetic polarons
• Dual nature of magnetism in MnSi

Cited by in corpus (2)

• Experimental determination of the spin Hamiltonian of the cubic chiral magnet MnSi
• Origin of the suppression of magnetic order in MnSi under hydrostatic pressure