%0 journal article
%@ 0031-9007
%A Grigoriev, S.V., Chernyshov, D., Dyadkin, V.A., Dmitriev, V., Maleyev, S,V., Moskvin, E.V., Menzel, D., Schoenes, J., Eckerlebe, H.

%D 2009
%J Physical Review Letters
%N 3
%P 037204 
%R doi:10.1103/PhysRevLett.102.037204
%T Crystal Handedness and Spin Helix Chirality in Fe1-xCoxSi
%U https://doi.org/10.1103/PhysRevLett.102.037204
3 
%X We show, with the help of polarized neutrons, that the cubic magnets Fe1-xCoxSi with Dzyaloshinskii-Moriya interaction can be switched between left (for x=0.1, 0.15) and right (for x=0.2, 0.25, 0.3, 0.5) chiral states of the spin helix. The absolute structure was evaluated using x-ray diffraction. The crystals are shown to be enantiopure and the structural chirality changes from right handed for x<0.2 to left handed for x>0.2. These compounds are compared with the etalon sample of MnSi which is identified as having the left-handed chirality both in the magnetic and crystallographic sense.