Affiliations: Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan | Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima 739-8530, Japan | ISIS Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, UK
Note: [] Corresponding author. Address: Neutron Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-1195 Japan. E-mail: shamoto@neutrons.tokai.jaeri.go.jp
Note: [] Present address: CEA/Grenoble, 38054 Grenoble Cedex 9, France.
Abstract: YTiO3 with Tc ∼ 30 K has been studied by the MARI spectrometer with Ei = 130 and 500 meV at T = 5, 40 and 200 K. We have not found any clear orbital excitation in a wide Q–E range (0.5 < Q < 25 Å−1, 6 < E < 350 meV). The intensity of orbital excitation would be significantly weak in comparison with the phonon.
Keywords: Inelastic neutron scattering, YTiO3, Orbital excitation, Orbiton
