2002/05/31 by B. Roessli, Roessli, B., P. Böni +5
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Rare-earth and actinide compounds #Solid-state spectroscopy and crystallography #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.cond-mat/0205657
Presented at the Strongly Correlated Electron Systems Conference, Kraków 2002
arxiv created 2002/05/31 · arxiv updated 2009/11/30
Using polarized inelastic neutron scattering the antisymmetric part of the dynamical susceptibility in non-centrosymmetric MnSi is determined. The paramagnetic fluctuations are found to be incommensurate with the chemical lattice and to have a chiral character. We show that antisymmetric interactions must be taken into account to properly describe the critical dynamics in MnSi above the Curie temperature. The inelastic neutron data is interpreted within the framework of the SCR-theory, taking into account the Dzyaloshinskii-Moriya interaction.