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Stress Dependence of the Switching Field in Glass Coated Microwires

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Komová E., Varga M., Varga R., Vojtaník P., Torrejon J., Provencio M., Vázquez M.

Acta Physica Polonica A

2008

vol. 113

issue 1

135-138

Here we present the study of the stress dependence of the switching field in amorphous glass-coated magnetic microwire of composition FeNiMoB. Samples were heat treated in the temperature range from 250°C up to 500°C in order to obtain relaxed and nanocrystalline state. As-cast microwire shows strong stress dependence of the switching field, which decreases with the temperature of annealing. The sample is almost not stress dependent after heat treatment at 425°C, because the magnetostriction vanishes. However, the strongest stress dependence was found for the microwire annealed at 400°C, just below the optimal annealing temperature to obtain the nanocrystalline state.

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1 Acta Physica Polonica A

1 2008

1 Komová E.

1 Provencio M.

1 Torrejon J.

1 Varga M.

1 Varga R.

1 Vojtaník P.

1 Vázquez M.

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Stress Dependence of the Switching Field in Glass Coated Microwires