title: Fluctuations and criticality in quantum paraelectrics.
abstract: The temperature dependence of the static dielectric susceptibility of a system with strongly coupled fluctuating dipoles is calculated within a self-consistent mean fluctuation field approximation. Results are qualitatively in good agreement with a quantum paraelectric SrTiO(3) in the low temperature regime. We identify this system as a gapped quantum paraelectric and suggest a possible experimental realization of a quantum critical paraelectric through the application of hydrostatic pressure or doping by impurity.
authors.affiliation: Institute of Physics, Bhubaneswar 751005, India.
authors.forename: Nabyendu
authors.initials: N
authors.lastname: Das
authors.forename: Suresh G
authors.initials: SG
authors.lastname: Mishra