Transitions Between Vortex and Transverse Walls in NiFe Nano-Structures

Bance, Simon; Schrefl, T.; Hrkac, G.; Suess, Dieter; Brownlie, C.; McVitie, S.; Chapman, J. N.; Allwood, D. A.

doi:10.1109/tmag.2006.878393

Cited by 7 publications

(7 citation statements)

References 6 publications

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“…As a result, the behavior of the TDW under the influence of an applied field depends on where it is situated within the element. This transition has also been observed in finite element simulations performed by Bance et al 18 In these experiments a clockwise rotating field of variable frequency was able to change reproducibly a transverse configuration to either a CW or CCW VDW as a function of field strength. In addition, static fields along the length of the strip were able to move the TDW from one corner to the other, with transition to a VDW occurring midway between the ends of the strip.…”

Section: Discussionsupporting

confidence: 74%

Lorentz microscopy studies of domain wall trap structures

Brownlie

McVitie

Chapman

et al. 2006

Journal of Applied Physics

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Vortex domain wall chirality rectification due to the interaction with end domain spin structures in permalloy nanowires Appl. Phys. Lett. 95, 252501 (2009); 10.1063/1.3275576 The effect of geometrical confinement and chirality on domain wall pinning behavior in planar nanowires J. Appl. Phys. Domain wall trapping probed by magnetoresistance and magnetic force microscopy in submicron ferromagnetic wire structures J. Appl. Phys. 85, 6178 (1999); 10.1063/1.370213Lorentz microscopy of small magnetic structures (invited) Domain wall traps of varying geometry have been studied using Lorentz microscopy in a transmission electron microscope. Electron beam lithography and lift-off were used to fabricate the elements whose shape allowed the formation of a head-to-head domain structure in the central section. Previous micromagnetic simulations have shown that different head-to-head configurations are possible depending on the width and thickness of the strip. In the majority of our in situ magnetizing experiments a vortex domain wall configuration was nucleated. This could be moved reproducibly between the ends of the element under fields of a few tens of oersted.

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Section: Discussionsupporting

confidence: 74%

Lorentz microscopy studies of domain wall trap structures

Brownlie

McVitie

Chapman

et al. 2006

Journal of Applied Physics

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“…We emphasize that the transverse wall and vortex wall has been observed in the magnetic nanostrips, NiFe nanowires, and Fe 3 O 4 nanotube arrays [6][7][8]17,18]. However, no experimental observations of the domain walls with more complicated branch and horse-saddle pattern magnetization structures have been reported so far.…”

Section: Discussionmentioning

confidence: 78%

“…Therefore, domain wall types can be modified by controlling the nanostructure dimensions as demonstrated quantitatively by the micromagnetic simulations in thin-films, nanowires, and confirmed experimentally by using spin-polarized scanning tunneling spectroscopy or spin-polarized scanning electron microscopy [5][6][7][8]. These phenomena were also observed in the case of tubular geometry.…”

Section: Introductionmentioning

confidence: 72%

Domain walls confined in magnetic nanotubes with uniaxial anisotropy

Chen

González

Guslienko

2012

Journal of Magnetism and Magnetic Materials

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“…Some larger grains covered by recrystallization appearing around the edges of the nanowire are due to the FIB irradiation processes that might affect magnetic properties of the entire nanowire. [21][22][23][24][25][26][27][28]…”

Section: Results Of 105 Nm-thick Curved Nanowiresmentioning

confidence: 99%