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Switching phase diagrams of exchange coupled composite media using two-particle model
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online). The structure schematic of the two-particle model.

Image of FIG. 2.
FIG. 2.

(Color online). A phase diagram for switching process with a low damping α = 0.01: white region for switched states and red region for non-switched cases, purple line is calculated by the Stoner–Wohlfarth model.

Image of FIG. 3.
FIG. 3.

(Color online). Magnetization’s evolution path at different applied fields (a) H ap = 0.33 Hk 1 and (b) H ap = 0.34 Hk 1 to explain the precessional switching, V 2/V 1 = 1.0, H ex/Hk 1 = 0.4, α = 0.01, θ = 80°.

Image of FIG. 4.
FIG. 4.

(Color online). A phase diagram for the switching with the same parameters as in Fig. 2 but a high damping α = 1.0.

Image of FIG. 5.
FIG. 5.

(Color online). Switching field Hs vs the soft/hard layer exchange intensity H ex at different applied field angles.

Image of FIG. 6.
FIG. 6.

(Color online). Relationship between the switching field Hs and the soft particle anisotropy field Hk 2 at θ = 1°, 10°, 45°.

Image of FIG. 7.
FIG. 7.

(Color online). Switching field Hs vs the volume of the soft particle V 2 for different H ex = 0.1 Hk 1 and 0.4 Hk 1, with Ms 2/Ms 1 = 1.0, Hk 2/Hk 1 = 0.3, α = 0.1, θ = 10°.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Switching phase diagrams of exchange coupled composite media using two-particle model