Condensation of the atomic relaxation vibrations in lead-magnesium-niobate at T = T *

Sergey Prosandeev, Igor P. Raevski, Maria A. Malitskaya, Svetlana I. Raevskaya, Haydn Chen, Chen Chia Chou, Brahim Dkhil

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18 引文 斯高帕斯(Scopus)

摘要

We present neutron diffraction, dielectric permittivity, and photoconductivity measurements, evidencing that lead-magnesium niobate experiences a diffuse phase transformation between the spherical glass and quadrupole glass phases, in the temperature interval between 400 K and 500 K, with the quadrupole phase possessing extremely high magnitudes of dielectric permittivity. Our analysis shows that the integral diffuse scattering intensity may serve as an order parameter for this transformation. Our experimental dielectric permittivity data support this choice. These data are important for the applications desiring giant dielectric responses in a wide temperature intervals and not related to electron's excitations.

原文English
文章編號124103
期刊Journal of Applied Physics
114
發行號12
DOIs
出版狀態Published - 17 十月 2013

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