Phys. Rev. B 47, 13992–13997 (1993)Lifshitz points in uniaxial ferroelectricsReceived 29 December 1992; published in the issue dated 1 June 1993 The critical behavior of Lifshitz points in systems with short range and uniaxial dipolar interaction is calculated. These multicritical points belong to a new universality class and may be relevant in the phase diagram of Sn2P2(SexS1-x)6. A variety of combinations of spatially anisotropic critical behavior is possible. The critical effects in the elastic constants are briefly mentioned. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.47.13992
DOI:
10.1103/PhysRevB.47.13992
PACS:
05.70.Jk, 64.60.Ht, 67.60.Fp
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