Crystal field excitations on NdFe3(BO3)4 investigated by inelastic neutron scattering

6th European Conference on Neutron Scattering

Hayashida, S.^1 ; Soda, M.^1 ; Itoh, S.^2 ; Yokoo, T.^2 ; Ohgushi, K.^3 ; Kawana, D.^1 ; Masuda, T.^1

Neutron Science Laboratory, Institute for Solid State Physics, University of Tokyo, Ibaraki, Tokai

319-1106, Japan^1

Neutron Science Division, Institute of Compounds Structure Science, High Energy Accelerator Research Organization, Ibaraki, Tsukuba

305-0801, Japan^2

Department of Physics, Tohoku University, Miyagi, Sendai

980-8581, Japan^3

关键词: Crystal field excitations;    Crystal fields;    Inelastic neutrons;    Multiferroic materials;    Neutron spectra;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/746/1/012059/pdf
DOI  :  10.1088/1742-6596/746/1/012059

来源: IOP

【 摘 要 】

We performed inelastic neutron scattering experiments on a multiferroic material NdFe3(BO3)4 to explore the crystal field excitations, where the magnetic anisotropy of the Nd3+crystal field was responsible for the multiferroicity. Flat modes were observed at 8.5 meV and 17.4 meV in the neutron spectrum. The analysis revealed that these excitations were the transitions from the ground state to the first and second excited states of the Nd3+crystal field.