Abstract
Elastic constants of CeB6 were redetermined by ultrasonic and Brillouin scattering measurements. We found all elastic constants to be positive, especiallyc 12. The temperature and magnetic field dependence of the elastic modesc 44 and (c 11-c 12)/2 is explained on the basis of the newly proposed crystalline-electric-field level scheme for CeB6 with theΓ 7 level 545 K above theΓ 8 ground state. The deduced quadrupolar coupling constants give an antiferroquadrupolar ordering temperature of 3.3 K in agreement with experiment.
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Supported by the DFG, SFB65, SFB125 and SFB126
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Lüthi, B., Blumenröder, S., Hillebrands, B. et al. Elastic and magnetoelastic effects in CeB6 . Z. Physik B - Condensed Matter 58, 31–38 (1984). https://doi.org/10.1007/BF01469434
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DOI: https://doi.org/10.1007/BF01469434