Alastair D. Bruce, T. Schneider, et al.
Physical Review Letters
The antiferrodistortive phase transitions of some perovskite crystals, driven first order by strongly cubic order-parameter fluctuations, are shown to become continuous at finite anisotropic stresses favoring ordering of one order-parameter component. The associated critical and tricritical behavior will be that of one of a spectrum of uniaxial Lifshitz systems, its precise character reflecting the form of the anisotropy in the soft-mode dispersion. Our predictions are in substantial accord with recent experiments on RbCaF3. © 1979 The American Physical Society.
Alastair D. Bruce, T. Schneider, et al.
Physical Review Letters
Amnon Aharony
Journal of Magnetism and Magnetic Materials
Alastair D. Bruce, R.A. Cowley
Advances in Physics
Yuval Gefen, Amnon Aharony, et al.
Physical Review Letters