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The effect of particle size on coercivity and crystallinity of SmCo5
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View: Figures


Image of FIG. 1.
FIG. 1.

(Color online) Intrinsic coercivity vs. typical flake thickness of SmCo5.

Image of FIG. 2.
FIG. 2.

(Color online) Coercivity vs. particle size or flake thickness (compiled data from this work and Refs. 8, 13, and 14).

Image of FIG. 3.
FIG. 3.

(Color online) Demagnetization curves of the SmCo5 flakes and the alloy: (a) along (//) and (b) along (⊥). (b) also shows the Br vs. flake thickness and the definition of the deviation angle α.

Image of FIG. 4.
FIG. 4.

(Color online) XRD and deviation angle vs. flake thickness. (a) XRD pattern along (//); (b) XRD along (⊥); (c) XRD intensity of [200] along (//) using [111] as 100%; (d) Intensity of [002] along (⊥) using [111] as 100%; and (e) Deviation α.

Image of FIG. 5.
FIG. 5.

TEM data for the flakes with typical thickness <20 nm. (a) bight field; (b) dark field image, the same area of a flake showing amorphous portion and nano-grains of 2–10 nm; and (c) SAED pattern indicating amorphous (broad diffuse rings) and crystalline phases (discontinuous rings).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The effect of particle size on coercivity and crystallinity of SmCo5