Local symmetry of the crystal-field Hamiltonian of CePtSn by polarized neutron scattering

0101895 - UJF-V 20043085 RIV US eng J - Journal Article
Janoušová, B. - Kulda, Jiří - Diviš, M. - Sechovský, V. - Komatsubara, T.
Local symmetry of the crystal-field Hamiltonian of CePtSn by polarized neutron scattering.
[Lokální symetrie Hamiltoniánu krystalového pole CePtSn rozptylem polarizovaných neutronů.]
Physical Review. B. Roč. 69, č. 22 (2004), s. 220412. ISSN 1098-0121
R&D Projects: GA AV ČR KSK1010104
Keywords : electric-fields * parameters
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 3.075, year: 2004

We present the results of a polarized neutron scattering study of crystal-field (CF) excitations in a CePtSn single crystal and their interpretation, describing the magnetic properties of the metallic Kondo antiferromagnet CePtSn in its paramagnetic phase. Using neutron polarization analysis, we demonstrate that all terms of the monoclinic site CF Hamiltonian have to be considered in order to account for all the available experimental data, including susceptibility and high-field magnetization measurements. The CF eigenstates, as probed by inelastic polarized neutron scattering, are not affected by cooperative phenomena neither in the vicinity of the Kondo temperature, T-K, nor below the Neel temperature, T-N

Rozptylem polarizovaných neutronů byly studovány excitace neutronového pole v krystalu CePtSn a dána jejich interpretace pomocí magnetických vlastnosti kovového Kondova antiferomagnetu CePtSn v paramagnetické fázi.
Permanent Link: http://hdl.handle.net/11104/0009276