Correlation between magnetic spin structure and the three-dimensional geometry in chemically synthesized nanoscale magnetite rings

Publication: Research - peer-review › Journal article – Annual report year: 2008

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Correlation between magnetic spin structure and the three-dimensional geometry in chemically synthesized nanoscale magnetite rings. / Eltschka, M; Klaui, M; Rudiger, U; Kasama, T; Gontard, Lionel Cervera ; Dunin-Borkowski, Rafal E.; Luo, F; Heyderman, LJ; Jia, C-J; Sun, L-D; Yan, C-H.

In: Applied Physics Letters, Vol. 92, No. 22, 2008, p. 222508.

Publication: Research - peer-review › Journal article – Annual report year: 2008

In: Applied Physics Letters, Vol. 92, No. 22, 2008, p. 222508.

Publication: Research - peer-review › Journal article – Annual report year: 2008

Bibtex

@article{42622c7430964a24815498964a991495,

title = "Correlation between magnetic spin structure and the three-dimensional geometry in chemically synthesized nanoscale magnetite rings",

publisher = "American Institute of Physics",

author = "M Eltschka and M Klaui and U Rudiger and T Kasama and Gontard, {Lionel Cervera} and Dunin-Borkowski, {Rafal E.} and F Luo and LJ Heyderman and C-J Jia and L-D Sun and C-H Yan",

note = "Copyright (2008) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.",

year = "2008",

volume = "92",

number = "22",

pages = "222508",

journal = "Applied Physics Letters",

issn = "0003-6951",

}

RIS

TY - JOUR

T1 - Correlation between magnetic spin structure and the three-dimensional geometry in chemically synthesized nanoscale magnetite rings

A1 - Eltschka,M

A1 - Klaui,M

A1 - Rudiger,U

A1 - Kasama,T

A1 - Gontard,Lionel Cervera

A1 - Dunin-Borkowski,Rafal E.

A1 - Luo,F

A1 - Heyderman,LJ

A1 - Jia,C-J

A1 - Sun,L-D

A1 - Yan,C-H

AU - Eltschka,M

AU - Klaui,M

AU - Rudiger,U

AU - Kasama,T

AU - Gontard,Lionel Cervera

AU - Dunin-Borkowski,Rafal E.

AU - Luo,F

AU - Heyderman,LJ

AU - Jia,C-J

AU - Sun,L-D

AU - Yan,C-H

PB - American Institute of Physics

PY - 2008

Y1 - 2008

N2 - The correlation between magnetic spin structure and geometry in nanoscale chemically synthesized Fe3O4 rings has been investigated by transmission electron microscopy. We find primarily the flux closure vortex states but in rings with thickness variations, an effective stray field occurs. Using tomography, we determine the complete three-dimensional geometries of thicker rings. A direct correlation between the geometry and the magnetization which points out of plane in the thickest parts of the ring yielding an intermediate magnetic state between the vortex state and the tube state is found. The interaction between exchange coupled rings leads to antiparallel vortex states and extended onion states. (c) 2008 American Institute of Physics.

AB - The correlation between magnetic spin structure and geometry in nanoscale chemically synthesized Fe3O4 rings has been investigated by transmission electron microscopy. We find primarily the flux closure vortex states but in rings with thickness variations, an effective stray field occurs. Using tomography, we determine the complete three-dimensional geometries of thicker rings. A direct correlation between the geometry and the magnetization which points out of plane in the thickest parts of the ring yielding an intermediate magnetic state between the vortex state and the tube state is found. The interaction between exchange coupled rings leads to antiparallel vortex states and extended onion states. (c) 2008 American Institute of Physics.

KW - FILMS

UR - http://link.aip.org/link/APPLAB/v92/i22/p222508/s1

U2 - 10.1063/1.2936989

DO - 10.1063/1.2936989

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 22

VL - 92

SP - 222508

ER -