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An appraisal of the crystal field in rare earth intermetallics: TmCu 2 Si 2
Author(s) -
Chatterji A.,
Chatterjee S.,
Chatterjee Reba
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301804
Subject(s) - intermetallic , quadrupole , inelastic neutron scattering , rare earth , neutron scattering , field (mathematics) , condensed matter physics , crystal (programming language) , inelastic scattering , scattering , neutron , physics , materials science , atomic physics , chemistry , nuclear physics , mineralogy , quantum mechanics , metallurgy , mathematics , alloy , computer science , pure mathematics , programming language
A crystal field (CF) investigation of the properties of Tm 3+ in TmCu 2 Si 2 has been done for an appraisal of the CF proposed by Kosaka et al. [J. Phys. Soc. Jpn. 66 , 2844 (1997)] from their magnetic studies and inelastic neutron scattering investigation. As these CF parameters were found to give only a qualitative explanation of the observed data, they were refined to have a closer fit to the observed magnetic susceptibility, Stark levels obtained from inelastic neutron scattering studies, and thermal variation of nuclear electric quadrupole splitting. It has been found that molecular field interactions play a dominant role at low temperatures. Other properties investigated theoretically with the help of the refined set of CF parameters are amenable to experimental check.