Vortex ferroelectric domains

A. Gruverman; D. Wu; H. J. Fan; I. Vrejoiu; M. Alexe; R. J. Harrison; J. F. Scott

doi:10.1088/0953-8984/20/34/342201

Vortex ferroelectric domains

A. Gruverman^*, D. Wu, H. J. Fan, I. Vrejoiu, M. Alexe, R. J. Harrison, J. F. Scott

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

190 Citations (Scopus)

Abstract

We show experimental switching data on microscale capacitors of lead-zirconate-titanate (PZT), which reveal time-resolved domain behavior during switching on a 100 ns scale. For small circular capacitors, an unswitched domain remains in the center while complete switching is observed in square capacitors. The observed effect is attributed to the formation of a vortex domain during polarization switching in small circular capacitors. This dynamical behavior is modeled using the Landau-Lifshitz-Gilbert equations and found to be in agreement with experiment. This simulation implies rotational motion of polarization in the xy plane, a Heisenberg-like result supported by the recent model of Naumov and Fu (2007 Phys. Rev. Lett. 98 077603), although not directly measurable by the present quasi-static measurements.

Original language	English
Article number	342201
Journal	Journal of Physics Condensed Matter
Volume	20
Issue number	34
DOIs	https://doi.org/10.1088/0953-8984/20/34/342201
Publication status	Published - Aug 27 2008
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
Condensed Matter Physics

Access to Document

10.1088/0953-8984/20/34/342201

Cite this

@article{c0fa7fdad5ef41e8852d84e20b80a494,

title = "Vortex ferroelectric domains",

abstract = "We show experimental switching data on microscale capacitors of lead-zirconate-titanate (PZT), which reveal time-resolved domain behavior during switching on a 100 ns scale. For small circular capacitors, an unswitched domain remains in the center while complete switching is observed in square capacitors. The observed effect is attributed to the formation of a vortex domain during polarization switching in small circular capacitors. This dynamical behavior is modeled using the Landau-Lifshitz-Gilbert equations and found to be in agreement with experiment. This simulation implies rotational motion of polarization in the xy plane, a Heisenberg-like result supported by the recent model of Naumov and Fu (2007 Phys. Rev. Lett. 98 077603), although not directly measurable by the present quasi-static measurements.",

author = "A. Gruverman and D. Wu and Fan, {H. J.} and I. Vrejoiu and M. Alexe and Harrison, {R. J.} and Scott, {J. F.}",

year = "2008",

month = aug,

day = "27",

doi = "10.1088/0953-8984/20/34/342201",

language = "English",

volume = "20",

journal = "Journal of Physics Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd.",

number = "34",

}

TY - JOUR

T1 - Vortex ferroelectric domains

AU - Gruverman, A.

AU - Wu, D.

AU - Fan, H. J.

AU - Vrejoiu, I.

AU - Alexe, M.

AU - Harrison, R. J.

AU - Scott, J. F.

PY - 2008/8/27

Y1 - 2008/8/27

N2 - We show experimental switching data on microscale capacitors of lead-zirconate-titanate (PZT), which reveal time-resolved domain behavior during switching on a 100 ns scale. For small circular capacitors, an unswitched domain remains in the center while complete switching is observed in square capacitors. The observed effect is attributed to the formation of a vortex domain during polarization switching in small circular capacitors. This dynamical behavior is modeled using the Landau-Lifshitz-Gilbert equations and found to be in agreement with experiment. This simulation implies rotational motion of polarization in the xy plane, a Heisenberg-like result supported by the recent model of Naumov and Fu (2007 Phys. Rev. Lett. 98 077603), although not directly measurable by the present quasi-static measurements.

AB - We show experimental switching data on microscale capacitors of lead-zirconate-titanate (PZT), which reveal time-resolved domain behavior during switching on a 100 ns scale. For small circular capacitors, an unswitched domain remains in the center while complete switching is observed in square capacitors. The observed effect is attributed to the formation of a vortex domain during polarization switching in small circular capacitors. This dynamical behavior is modeled using the Landau-Lifshitz-Gilbert equations and found to be in agreement with experiment. This simulation implies rotational motion of polarization in the xy plane, a Heisenberg-like result supported by the recent model of Naumov and Fu (2007 Phys. Rev. Lett. 98 077603), although not directly measurable by the present quasi-static measurements.

UR - http://www.scopus.com/inward/record.url?scp=56349137192&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=56349137192&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/20/34/342201

DO - 10.1088/0953-8984/20/34/342201

M3 - Article

AN - SCOPUS:56349137192

SN - 0953-8984

VL - 20

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

IS - 34

M1 - 342201

ER -

Vortex ferroelectric domains

Abstract

ASJC Scopus Subject Areas

Access to Document

Other files and links

Fingerprint

Cite this