Collective magnetism at multiferroic vortex domain walls

Yanan Geng, N. Lee, Young Jai Choi, S. W. Cheong, Weida Wu

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Cross-coupled phenomena of multiferroic domains and domain walls are of fundamental scientific and technological interest. Using cryogenic magnetic force microscopy, we find alternating net magnetic moments at ferroelectric domain walls around vortex cores in multiferroic hexagonal ErMnO3, which correlate with each other throughout the entire vortex network. This collective nature of domain wall magnetism originates from the uncompensated Er3+ moments at domain walls and the self-organization of the vortex network. Our results demonstrate that the collective domain wall magnetism can be controlled by external magnetic fields and represent a major advancement in the manipulation of local magnetic moments by harnessing cross-coupled domain walls.

Original languageEnglish
Pages (from-to)6055-6059
Number of pages5
JournalNano Letters
Volume12
Issue number12
DOIs
Publication statusPublished - 2012 Dec 12

Fingerprint

Domain walls
Magnetism
domain wall
Vortex flow
vortices
Magnetic moments
magnetic moments
Magnetic force microscopy
magnetic force microscopy
Cryogenics
Ferroelectric materials
cryogenics
manipulators
Magnetic fields
moments
magnetic fields

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Geng, Yanan ; Lee, N. ; Choi, Young Jai ; Cheong, S. W. ; Wu, Weida. / Collective magnetism at multiferroic vortex domain walls. In: Nano Letters. 2012 ; Vol. 12, No. 12. pp. 6055-6059.
@article{724248376ef44c5cbfdb8cd0b0594dde,
title = "Collective magnetism at multiferroic vortex domain walls",
abstract = "Cross-coupled phenomena of multiferroic domains and domain walls are of fundamental scientific and technological interest. Using cryogenic magnetic force microscopy, we find alternating net magnetic moments at ferroelectric domain walls around vortex cores in multiferroic hexagonal ErMnO3, which correlate with each other throughout the entire vortex network. This collective nature of domain wall magnetism originates from the uncompensated Er3+ moments at domain walls and the self-organization of the vortex network. Our results demonstrate that the collective domain wall magnetism can be controlled by external magnetic fields and represent a major advancement in the manipulation of local magnetic moments by harnessing cross-coupled domain walls.",
author = "Yanan Geng and N. Lee and Choi, {Young Jai} and Cheong, {S. W.} and Weida Wu",
year = "2012",
month = "12",
day = "12",
doi = "10.1021/nl301432z",
language = "English",
volume = "12",
pages = "6055--6059",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "12",

}

Geng, Y, Lee, N, Choi, YJ, Cheong, SW & Wu, W 2012, 'Collective magnetism at multiferroic vortex domain walls', Nano Letters, vol. 12, no. 12, pp. 6055-6059. https://doi.org/10.1021/nl301432z

Collective magnetism at multiferroic vortex domain walls. / Geng, Yanan; Lee, N.; Choi, Young Jai; Cheong, S. W.; Wu, Weida.

In: Nano Letters, Vol. 12, No. 12, 12.12.2012, p. 6055-6059.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Collective magnetism at multiferroic vortex domain walls

AU - Geng, Yanan

AU - Lee, N.

AU - Choi, Young Jai

AU - Cheong, S. W.

AU - Wu, Weida

PY - 2012/12/12

Y1 - 2012/12/12

N2 - Cross-coupled phenomena of multiferroic domains and domain walls are of fundamental scientific and technological interest. Using cryogenic magnetic force microscopy, we find alternating net magnetic moments at ferroelectric domain walls around vortex cores in multiferroic hexagonal ErMnO3, which correlate with each other throughout the entire vortex network. This collective nature of domain wall magnetism originates from the uncompensated Er3+ moments at domain walls and the self-organization of the vortex network. Our results demonstrate that the collective domain wall magnetism can be controlled by external magnetic fields and represent a major advancement in the manipulation of local magnetic moments by harnessing cross-coupled domain walls.

AB - Cross-coupled phenomena of multiferroic domains and domain walls are of fundamental scientific and technological interest. Using cryogenic magnetic force microscopy, we find alternating net magnetic moments at ferroelectric domain walls around vortex cores in multiferroic hexagonal ErMnO3, which correlate with each other throughout the entire vortex network. This collective nature of domain wall magnetism originates from the uncompensated Er3+ moments at domain walls and the self-organization of the vortex network. Our results demonstrate that the collective domain wall magnetism can be controlled by external magnetic fields and represent a major advancement in the manipulation of local magnetic moments by harnessing cross-coupled domain walls.

UR - http://www.scopus.com/inward/record.url?scp=84870916388&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870916388&partnerID=8YFLogxK

U2 - 10.1021/nl301432z

DO - 10.1021/nl301432z

M3 - Article

VL - 12

SP - 6055

EP - 6059

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 12

ER -