Effects of oxygen vacancies on polarization stability of barium titanate

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

11 Scopus Citations
View graph of relations

Author(s)

  • Jun Wang
  • Fan Song
  • FuJiu Ke
  • YiLong Bai
  • ChunSheng Lu

Detail(s)

Original languageEnglish
Article number634602
Pages (from-to)1-4
Journal / PublicationScience China: Physics, Mechanics and Astronomy
Volume59
Issue number3
Publication statusPublished - 1 Mar 2016

Abstract

Oxygen vacancy, a kind of native point defects in ferroelectric ceramics, usually causes an increase of the dielectric loss. Based on experimental observations, it is believed that all of the oxygen vacancies are an unfavorable factor for energy saving. By using molecular dynamics simulations, we show that the increase of coercive and saturated electric fields is due to the difficulty to switch local polarization near an oxygen vacancy, and so that a ferroelectric device has to sustain the rising consumption of energy. The simulation results also uncover how oxygen vacancies influence ferroelectric properties.

Research Area(s)

  • ferroelectricity, hysteresis, molecular dynamics simulation, oxygen vacancy

Citation Format(s)

Effects of oxygen vacancies on polarization stability of barium titanate. / Wang, Jun; Shen, YaoGen; Song, Fan; Ke, FuJiu; Bai, YiLong; Lu, ChunSheng.

In: Science China: Physics, Mechanics and Astronomy, Vol. 59, No. 3, 634602, 01.03.2016, p. 1-4.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review