Journal
JOURNAL OF APPLIED PHYSICS
Volume 90, Issue 9, Pages 4676-4681Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1408597
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We report results obtained from polarization measurements on PbMg1/3Nb2/3O3 single crystal under static electric field, in both field cooling and field switching after zero field cooling processes. In the field cooling process, two kinds of regime are observed depending on the field strength, i.e., above and below threshold value E(t)approximate to1.7 kV/cm. From the low field regime results we have extracted both linear and nonlinear susceptibilities, which exhibit an anomaly close to the freezing temperature. In the field switching after zero field cooling experiments, a local polarization corresponding to the appearance of polar nuclei develops up to a critical value where the nuclei collapse into macroscopic ferroelectric macrodomains. (C) 2001 American Institute of Physics.
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