Electronic Resource
Springer
The European physical journal
66 (1987), S. 339-343
ISSN:
1434-6036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have determined the crystalline-electric-field (CEF) level scheme of NdB6 by means of Raman spectroscopy. We could resolve two CEF-transitions at 92 cm−1 and 98 cm−1 due to the spectral resolution of 2 cm−1 (=0.25 meV). The temperature dependent Raman scattering reveals the two transitions to be on top of one another, in agreement with fits of the temperature dependence of the magnetic susceptibility. The spectroscopically determined CEF level scheme yields a good fit of the elastic constants and hence the mean field prediction of a ferroquadrupolar ordering near 6 K. This result sheds new light on the phase transition in NdB6 nearT N =8.6 K which has so far been interpreted only in terms of antiferromagnetic ordering.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01305424
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