Possible Lifshitz point behaviour in NbO2
- 20 April 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (11), L255-L259
- https://doi.org/10.1088/0022-3719/13/11/003
Abstract
The structural phase transition occurring in NbO2 is analysed using renormalisation group techniques. It is suggested that the observed crossover in the order parameter critical exponent beta from beta approximately=0.19 to beta approximately=0.39 may reflect a crossover from Lifshitz to ordinary critical behaviour. The phenomenon is associated with the strongly anisotropic dispersion relation found in this compound.Keywords
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