Analysis of switching current data in KTA single crystals

A. R. Akhmatkhanov, M. A. Chuvakova, N. A. Dolgushin, D. B. Kolker, V. N. Vedenyapin, L. I. Isaenko, V. Ya Shur

Research output: Contribution to journalArticlepeer-review

Abstract

We present the results of analysis of the switching current during polarization reversal in wide field range in KTA single crystals. According to previously revealed stages of domain structure evolution, the switching current data have been separated into three parts. The first original hatching stage representing growth of streamer clusters with smooth current has been revealed. Fitting of the switching current by Kolmogorov-Avrami formula has allowed extracting the main characteristic times, which followed the activation field dependence. It has been demonstrated that the fraction of the area switched by hatching is almost the same for the whole field range.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalFerroelectrics
Volume559
Issue number1
DOIs
Publication statusPublished - 25 Apr 2020

Keywords

  • domain kinetics
  • Kolmogorov-Avrami formula
  • KTiOAsO
  • polarization reversal
  • switching current

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