Stability Conditions for Saw-Tooth Walls Between Head-On Domains

Minnaja, N.; Nobile, Matthew A.; Wolfe, Hugh C.; Graham, C. D.; Rhyne, J. J.

doi:10.1063/1.2946731

Cited by 8 publications

(12 citation statements)

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“…The saw-tooth geometries have been measured for a number of samples and a comparison made with the theoretical predictions developed by Minnaja and Nobile (1972). The measured wall angles are in good agreement with those derived from the theory.…”

Section: Discussionsupporting

confidence: 52%

“…We have attempted to verify, experimentally, the predictions of the theory due to Minnaja and Nobile (1972), relating to the saw-tooth angle 0 and amplitude A (see figure 2). Minimization of their expression for the total wall energy per unit length normal to the easy direction with respect to wall width and wall angle yields (2) where 0 is the equilibrium wall angle in zero applied field andf'(0) is the derivative of the numerical function given by Minnaja and Nobile (1972).…”

Section: Domain Wall Geometrymentioning

confidence: 99%

“…Minimization of their expression for the total wall energy per unit length normal to the easy direction with respect to wall width and wall angle yields (2) where 0 is the equilibrium wall angle in zero applied field andf'(0) is the derivative of the numerical function given by Minnaja and Nobile (1972). The functionf'(0) was determined numerically and is sketched in figure 7.…”

Section: Domain Wall Geometrymentioning

confidence: 99%

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Transport of a high-intensity electron beam in neutral gases

Arutyunyan¹,

Bogdankevich²,

Bondar³

et al. 1982

Sov. J. Quantum Electron.

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Head-on domains having saw-tooth wall configurations in Ni/Fe/Co films are discussed in relation to the existing theoretical models. The existence of Ndel tails within such wall structures as previously proposed is supported and discussed with respect to: (a) direct magneto-optic observations and measurements, and (b) a comparison of the predicted saw-tooth amplitude and angles with the observed values.A large number of films were investigated and the wall angles were found to be dependent upon the ratio of the coercivity to anisotropy field, Hc/ffk, as predicted in the Ndel tail model, whilst the saw-tooth amplitude was determined predominantly by the coercivity. Effective wall widths of the order of 100 Km have been observed in 0.14 pm thick 18/17/3 Ni/Fe/Co films.

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Section: Discussionsupporting

confidence: 52%

Section: Domain Wall Geometrymentioning

confidence: 99%

Section: Domain Wall Geometrymentioning

confidence: 99%

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Transport of a high-intensity electron beam in neutral gases

Arutyunyan¹,

Bogdankevich²,

Bondar³

et al. 1982

Sov. J. Quantum Electron.

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“…Several of these works utilise, as a core to the theory, the behaviour of a domain wall which forms a sawtooth structure to reduce its demagnetising energy [16]. The present pa er follows the earlier one of Middleton and Miles b5] which uses such considerations.…”

Section: B Recording Theory For Sawteethmentioning

confidence: 93%

Recorded magnetisation distributions in thin film media

Middleton

Miles

1991

IEEE Trans. Magn.

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“…The stochastic models [29][30][31][32][33] model the zig-zag transition line as a random process, thus accounting for the random character of media noise. Hence, simplified modeling assuming zigzag walls can give reasonable models of transition shape as well as noise [25,26,34,35].…”

Section: Model Description and Transition Noise In Magnetic Recording Mediamentioning

confidence: 99%

Signal Noise Ratio and Magnetic Density in Digital Magnetic Recording System: Analytical and Numerical Investigation

Noula¹,

Yémélé²

2021

Int J Magnetics Electromagnetism

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In this work the analysis of noise especially the transition jitter noise is used to evaluate the areal density which are consider as one of the most important characteristics in magnetic recording systems. This is possible through the analytical evaluation of the signal noise ratio (SNR) using kink soliton as domain wall profile and assuming that, the transition noise are the dominant noise in recording media. The intrinsic parameters and experimental values for magnetic recording media especially the domain wall width are chosen to emphasize the impact of noise in a certain simple materials and compounds materials used to manufacture recording media. The comparative study on evolution of areal density is done to reinforce the fact that noise can governed the magnetic density, where the values of 180 Gb/inch 2 is attaint for kink soliton profile here compare to 100 Gb/inch 2 obtain in 2008. The study is complete with numerical investigation of areal density where the value about 1.8 × 10 11 bits/inch 2 can be attaint when SNR is about 4300 dB, this results are obtain with a basic compound CoF 2 having a domain wall width of 95.992 nm just to strengthen the work.

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Stability Conditions for Saw-Tooth Walls Between Head-On Domains

Cited by 8 publications

References 0 publications

Transport of a high-intensity electron beam in neutral gases

Transport of a high-intensity electron beam in neutral gases

Recorded magnetisation distributions in thin film media

Signal Noise Ratio and Magnetic Density in Digital Magnetic Recording System: Analytical and Numerical Investigation

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