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Magnetization reversal in Fe48Pt34B34 magnetic foils |
| Gao You-Hui(高有辉)† |
| Department of Physics, Beijing Normal University, Beijing 100875, China |
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Abstract Exchange-spring magnet L1-FePt/(Fe2B+α-Fe) is fabricated by flash annealing a melt-spun Fe48Pt34B34 foil. A coercivity of 8500 Oe (1 Oe = 79.5775 A/m), squareness (Mr/Ms) of 0.70, saturation magnetization of 10.2 kGs (1 Gs = 10-4 T) and an effective anisotropy Keff =2.0 × 107 ergs/cm3 are obtained. A two-step magnetization reversal feature is characterized in this paper. An exchange bias phenomenon is also observed in a low saturation field.
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Received: 18 April 2011
Revised: 17 May 2011
Accepted manuscript online:
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PACS:
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75.50.Tt
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(Fine-particle systems; nanocrystalline materials)
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75.60.Ej
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(Magnetization curves, hysteresis, Barkhausen and related effects)
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Cite this article:
Gao You-Hui(高有辉) Magnetization reversal in Fe48Pt34B34 magnetic foils 2011 Chin. Phys. B 20 107502
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