Emergence of a quantum coherent state at the border of ferroelectricity

  title={Emergence of a quantum coherent state at the border of ferroelectricity},
  author={Matthew John Coak and Charles R. S. Haines and C. Liu and Stephen E. Rowley and Gilbert George Lonzarich and Siddharth S. Saxena},
  journal={arXiv: Materials Science},
Quantum melting of magnetism or ferroelectricity can lead to novel forms of order characterized by exotic excitations and unconventional superconductivity. Here we show by means of high precision measurements of the temperature and pressure dependence of the dielectric susceptibility that quantum melting of a displacive ferroelectric leads to an unconventional quantum paraelectric state exhibiting the phenomenon of 'order by disorder', namely a fluctuation induced enhancement of electric… Expand
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