METHOD FOR ORDERING A DISORDERED ALLOY AND MAGNETIC MATERIAL MADE THEREBY

A method for ordering a disordered alloy includes: (a) forming a layer of a first alloy on a substrate, the first alloy being composed of a first metal and a second metal, and having a meta-stable phase of a face-centered cubic (FCC) crystal structure; (b) forming a layer of a third metal on the lay...

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Hauptverfasser: LAI CHIH-HUANG, WEN WEIIH
Format: Patent
Sprache:eng
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Zusammenfassung:A method for ordering a disordered alloy includes: (a) forming a layer of a first alloy on a substrate, the first alloy being composed of a first metal and a second metal, and having a meta-stable phase of a face-centered cubic (FCC) crystal structure; (b) forming a layer of a third metal on the layer of the first alloy to form a layer unit including the layer of the first alloy and the layer of the third metal; and (c) annealing the layer unit to cause interdiffusion of atoms of the first and third metals between the layer of the first alloy and the layer of the third metal so as to form an ordered second alloy composed of the second and third metals. The first metal is insoluble in the second alloy composed of the second and third metals, and has a diffusion constant greater than those of the second and third metals.