Anomalous phonon excitations associated with strong p-f mixing effect of CeSb an

2019-08-07 12:38:45

mixing CE scattering phonon inelastic

责任者: Iwasa, K.;Kohgi, M.;Braden, M.;Mignot, J.-M.;Kitazawa, H.;Suzuki, T. 单位: Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan 来源出处: Journal of Magnetism and Magnetic Materials,2004,272-276(SUPPL 1):65-66- 摘要: Inelastic neutron scattering experiments revealed a new phonon existing only in the magnetically ordered phases of CeSb and CeBi, where ferromagnetic Ce-ion layers with magnetic moments of 2 μB appear due to the p-f mixing effect on Γ8 state. The observed new phonon is stretching mode of the Ce-X bond forming the p-f mixing orbital. This fact indicates a novel coupling between electronic states by the p-f mixing and the crystal lattice. © 2003 Elsevier B.V. All rights reserved. 关键词: Phonons;Cerium compounds;Mixing;Magnetic properties;Spectroscopic analysis;Single crystals;Crystal lattices;Neutron scattering;Ce-nanoparticles;P-f mixing;Ion layers;Inelastic neutron scattering