Spin dynamics in natural multiferroic pyroxene NaFeSi${}_2$O${}_6$

Oleksandr Prokhnenko, Stanislav E. Nikitin, Koji Kaneko +8

Spin dynamics in the natural mineral aegirine, NaFeSi${}_2$O${}_6$, a member of the pyroxene family, was studied by elastic and inelastic neutron scattering. Magnetization and specific…