Switching current in Pb(Zn1/3Nb2/3)03-PbTiO3 single crystals

Uma Belegundu, Xiaohong Du, Kenji Uchino

Research output: Contribution to journalArticle

Abstract

Switching current measurements have been carried out on relaxor ferroelectric single crystal - pure PZN, and the solid solution (1-x) Pb(Zn1/3Nb2/3)03 - x PbTiO3 with x= 0.04, 0.09, 0.10. Measurements have been done for crystallographic directions [001] and [111] for all these compositions. Switching times versus the applied field showed the following results. Pure PZN along [111] and 0.90PZN - 0.10PT along [001], and [111] showed an exponential dependence. Along [001] the PZN showed a linear fit. For solid solution single crystals-0.96PZN -0.04PT and 0.91PZN - 0.09PT, a linear fit was obtained for the reciprocal switch times versus applied field for both the directions. If we draw a parallel picture with the reported barium titanate data, it appears that the polarization reversal is controlled by nucleation along [111]- spontaneous direction for PZN and [001], [111] for 0.90PZN - 0.10PT. The mobility of the reversed domains controls the reversal along [001] for PZN and the solid solution single crystals with rhombohedral composition along [001] and [111]. The transient current curves showed two maximum points for crystals with x = 0.04 and 0.09. This is attributed to the co-existence of the two phases in 0.96PZN -0.04PT and 0.91 PZN - 0.09PT crystals.

Original languageEnglish (US)
Pages (from-to)39-44
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume604
StatePublished - 2000

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Solid solutions
solid solutions
Single crystals
single crystals
Time switches
Crystals
Barium titanate
Electric current measurement
Chemical analysis
Ferroelectric materials
crystals
barium
Nucleation
switches
nucleation
Polarization
curves
polarization
Direction compound

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

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title = "Switching current in Pb(Zn1/3Nb2/3)03-PbTiO3 single crystals",
abstract = "Switching current measurements have been carried out on relaxor ferroelectric single crystal - pure PZN, and the solid solution (1-x) Pb(Zn1/3Nb2/3)03 - x PbTiO3 with x= 0.04, 0.09, 0.10. Measurements have been done for crystallographic directions [001] and [111] for all these compositions. Switching times versus the applied field showed the following results. Pure PZN along [111] and 0.90PZN - 0.10PT along [001], and [111] showed an exponential dependence. Along [001] the PZN showed a linear fit. For solid solution single crystals-0.96PZN -0.04PT and 0.91PZN - 0.09PT, a linear fit was obtained for the reciprocal switch times versus applied field for both the directions. If we draw a parallel picture with the reported barium titanate data, it appears that the polarization reversal is controlled by nucleation along [111]- spontaneous direction for PZN and [001], [111] for 0.90PZN - 0.10PT. The mobility of the reversed domains controls the reversal along [001] for PZN and the solid solution single crystals with rhombohedral composition along [001] and [111]. The transient current curves showed two maximum points for crystals with x = 0.04 and 0.09. This is attributed to the co-existence of the two phases in 0.96PZN -0.04PT and 0.91 PZN - 0.09PT crystals.",
author = "Uma Belegundu and Xiaohong Du and Kenji Uchino",
year = "2000",
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Switching current in Pb(Zn1/3Nb2/3)03-PbTiO3 single crystals. / Belegundu, Uma; Du, Xiaohong; Uchino, Kenji.

In: Materials Research Society Symposium - Proceedings, Vol. 604, 2000, p. 39-44.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Switching current in Pb(Zn1/3Nb2/3)03-PbTiO3 single crystals

AU - Belegundu, Uma

AU - Du, Xiaohong

AU - Uchino, Kenji

PY - 2000

Y1 - 2000

N2 - Switching current measurements have been carried out on relaxor ferroelectric single crystal - pure PZN, and the solid solution (1-x) Pb(Zn1/3Nb2/3)03 - x PbTiO3 with x= 0.04, 0.09, 0.10. Measurements have been done for crystallographic directions [001] and [111] for all these compositions. Switching times versus the applied field showed the following results. Pure PZN along [111] and 0.90PZN - 0.10PT along [001], and [111] showed an exponential dependence. Along [001] the PZN showed a linear fit. For solid solution single crystals-0.96PZN -0.04PT and 0.91PZN - 0.09PT, a linear fit was obtained for the reciprocal switch times versus applied field for both the directions. If we draw a parallel picture with the reported barium titanate data, it appears that the polarization reversal is controlled by nucleation along [111]- spontaneous direction for PZN and [001], [111] for 0.90PZN - 0.10PT. The mobility of the reversed domains controls the reversal along [001] for PZN and the solid solution single crystals with rhombohedral composition along [001] and [111]. The transient current curves showed two maximum points for crystals with x = 0.04 and 0.09. This is attributed to the co-existence of the two phases in 0.96PZN -0.04PT and 0.91 PZN - 0.09PT crystals.

AB - Switching current measurements have been carried out on relaxor ferroelectric single crystal - pure PZN, and the solid solution (1-x) Pb(Zn1/3Nb2/3)03 - x PbTiO3 with x= 0.04, 0.09, 0.10. Measurements have been done for crystallographic directions [001] and [111] for all these compositions. Switching times versus the applied field showed the following results. Pure PZN along [111] and 0.90PZN - 0.10PT along [001], and [111] showed an exponential dependence. Along [001] the PZN showed a linear fit. For solid solution single crystals-0.96PZN -0.04PT and 0.91PZN - 0.09PT, a linear fit was obtained for the reciprocal switch times versus applied field for both the directions. If we draw a parallel picture with the reported barium titanate data, it appears that the polarization reversal is controlled by nucleation along [111]- spontaneous direction for PZN and [001], [111] for 0.90PZN - 0.10PT. The mobility of the reversed domains controls the reversal along [001] for PZN and the solid solution single crystals with rhombohedral composition along [001] and [111]. The transient current curves showed two maximum points for crystals with x = 0.04 and 0.09. This is attributed to the co-existence of the two phases in 0.96PZN -0.04PT and 0.91 PZN - 0.09PT crystals.

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