Quantum critical behavior of a magnetic quantum paraelectric

Abstract

We discuss the interplay between anti-ferromagnetic order and polarization fluctuations in a magnetic quantum paraelectric. Using an action where anti-ferromagnetic order parameter couples to the polarization fluctuations and as well as magnetic field, we derive a set of self consistent equations to study both the temperature and the magnetic field dependence of the static dielectric susceptibility. The temperature dependence of dielectric susceptibility near both the anti-ferromagnetic quantum critical point and ferroelectric quantum critical point are described using scaling arguments. Discussions on achieving various quantum critical points in experiments are also made.

Published version, 7 pages, 3 figures; http://dx.doi.org/10.1016/j.physleta.2012.07.012

References in corpus (4)

• Quantum criticality in ferroelectrics
• Observation of a multiferroic critical end point
• Quantum Critical Paraelectrics and the Casimir Effect in Time
• Fluctuations and Criticality in Quantum Paraelectrics

Cited by in corpus (6)

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• Multiferroic Quantum Criticality
• Hidden fluctuations close to a quantum bicritical point
• Multiferroic behavior confined by symmetry in EuTiO3 films
• Effects of Strain coupling and Marginal dimensionality in the nature of phase transition in Quantum paraelectrics
• Optical phonon contribution to the thermal conductivity of a quantum paraelectric