MFM imaging of micron-sized permalloy ellipses

Felton, Solveig; Gunnarsson, Klas; Roy, P. E.; Svedlindh, Peter; Quist, Arjan P.

doi:10.1016/j.jmmm.2004.03.013

Cited by 14 publications

(4 citation statements)

References 12 publications

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“…The occurrence of different domain states is not solely due to imperfections in the elements. The same element can exhibit different multi-domain states, in different field cycles, which has been observed previously for 2 µm × 1 µm ellipses [9] as well as 1.47 µm × 0.64 µm and 1.47 µm × 0.75 µm ellipses [10]. Thus edge roughness of a particular element seems to be of minor importance for the zero-field multi-domain state attained.…”

Section: Resultssupporting

confidence: 71%

Domain configuration of permalloy ellipses in a rotating magnetic field

Felton¹,

Warnicke²,

Gunnarsson³

et al. 2006

J. Phys. D: Appl. Phys.

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The domain configuration of micron-sized permalloy ellipses was studied under the influence of an in-plane rotating magnetic field using magnetic force microscopy. The field amplitude was chosen such that when the field is applied parallel to the long axis of the ellipses they are saturated, but when the field is perpendicular to the long axis they exhibit multi-domain states. The rotation angle for nucleation and annihilation of domains was determined for different magnitudes of the applied magnetic field and for two different lateral sizes of ellipses, 6 µm × 2 µm and 3 µm × 1 µm. It was found that both nucleation and annihilation occur over a range of angles for both lateral sizes of ellipses. Saturated states are stable for a wider range of angles for larger values of the applied field.

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Section: Resultssupporting

confidence: 71%

Domain configuration of permalloy ellipses in a rotating magnetic field

Felton¹,

Warnicke²,

Gunnarsson³

et al. 2006

J. Phys. D: Appl. Phys.

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“…2a) and diamond, (b) were obtained by total energy minimization from the initial random magnetization state. Resulting vortex and diamond states have already been shown to exist in demagnetized cobalt [7,8,12] and permalloy [27][28][29][30] elements. The third type of magnetization-cross-tie type, as given in Fig.…”

Section: Magnetic Configurations Of Cobalt Microbars In Demagnetized mentioning

confidence: 99%

Micromagnetic studies of cobalt microbars fabricated by nanoimprint lithography and electrodeposition

Grujicic

Pešić

2005

Journal of Magnetism and Magnetic Materials

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“…In the past, patterned ferromagnetic structures of different typical shapes such as square [4][5][6], rectangular [7][8][9], circular [10], elliptical [11], and diamond [12] shapes have been investigated. Different kinds of magnetic properties resulting from the competition between the geometrical and the intrinsic factors of the film have been observed.…”

Section: Introductionmentioning

confidence: 99%