Six different polycrystalline samples of MnSi were produced as a rapidly frozen melt after the single crystal growth in the Czochralski process. With the help of small-angle scattering of polarized neutrons we show that the magnetic spin chirality being scanned along the sample length oscillates strongly on a scale of 2-3 mm, revealing the volumes of the samples with high degree of an enantiomeric excess. The average chirality of the samples deviates from zero value.
Dyadkin, V. A., Grigoriev, S. V., Menzel, D., Moskvin, E. V., Maleyev, S. V., & Eckerlebe, H. (2011). Spin chirality of polycrystalline MnSi, or, difficult way from rumours to the solid ground. Physica B: Condensed Matter, 406(12), 2385-2388. https://doi.org/10.1016/j.physb.2010.11.023