Surface and volume pinning of domain walls in amorphous ribbons

Horvat, J.

doi:10.1016/0304-8853(93)90012-q

Journal of Magnetism and Magnetic Materials

1993

DOI: 10.1016/0304-8853(93)90012-q

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Surface and volume pinning of domain walls in amorphous ribbons

J. Horvat¹

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Cited by 4 publications

References 41 publications

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Variation of relaxation frequencies with depth in amorphous Co74Fe6B20 ribbons

Horvat

1993

Phys. Stat. Sol. (a)

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Measurements of peak shifts in the derivative of magnetisation with time versus driving field are performed on Co74Fe6B20 amorphous ribbons, carrying an electrical current. Ribbons with a cross‐section of 2 × 0.025 mm2 are produced by melt‐spinning. Magnetic anisotropy is induced in them prior to the measurements, by annealing at 300 °C in a non‐saturated state. Measurements of the peak shift give information on the degree of stabilisation of domain walls with depth in the ribbons. For short annealing times (≈︁1 min), the stabilisation is inhomogeneous through the thickness; for long annealing times (≈︁2 h), just a slight inhomogeneity is obtained. From these results it is deduced that relaxation frequencies are highest, but not the same, in the vicinity of the free and the contact ribbon surfaces. It is also shown that inhomogeneous stabilisation of domain walls is induced in samples upon their production.

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Variation of relaxation frequencies with depth in amorphous Co74Fe6B20 ribbons

Horvat

1993

Phys. Stat. Sol. (a)

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Effect of Co substitution for Ni on the microstructure and magnetic properties of (Fe, Ni)-based amorphous alloys produced by melt spinning

Suliţanu

Brinza

Tufescu

2005

Journal of Non-Crystalline Solids

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Improved critical current of superconducting Bi2223 - Ag tapes for current lead application by addition of `large' silver particles

Zeimetz

Dou

Liu

1996

Supercond. Sci. Technol.

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The effect of silver additions on the microstructure and superconducting properties of (Bi, Pb) 2 Sr 2 Ca 2 Cu 3 O x (Bi2223)-Ag tapes has been investigated. We find a strong dependence on both the silver content and especially the silver particle size. The addition of small (5 µm) particles results in a slight reduction of the critical current. Large (400 µm) particles are squeezed into long flat layers, leading to better grain alignment, grain density and phase purity of the 2223 phase along these layers. As a consequence, the critical current is increased by up to 60% in self-magnetic field, and even more in an external magnetic field.

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Surface and volume pinning of domain walls in amorphous ribbons

Cited by 4 publications

References 41 publications

Variation of relaxation frequencies with depth in amorphous Co74Fe6B20 ribbons

Variation of relaxation frequencies with depth in amorphous Co74Fe6B20 ribbons

Effect of Co substitution for Ni on the microstructure and magnetic properties of (Fe, Ni)-based amorphous alloys produced by melt spinning

Improved critical current of superconducting Bi2223 - Ag tapes for current lead application by addition of `large' silver particles

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