Spin excitation of an ilmenite FeTiO powder sample is measured by time-of-flight inelastic neutron scattering. The dynamic magnetic pair-density function D(r, E) is obtained from the dynamic magnetic structure factor S(Q, E) by the Fourier transformation. The real space spin dynamics exhibit magnon mode transitions in the spin-spin correlation with increasing energy from no-phase-shift to π-phase-shift. The mode transition is well reproduced by a simulation using the reciprocal space magnon dispersions. This analysis provides a novel opportunity to study the local spin dynamics of various magnetic systems.
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| http://dx.doi.org/10.1038/s41598-022-22555-9 | DOI Listing |
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