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Karpuz, Ali; Kockar, Hakan; Alper, Mursel
{ "DOI": "10.1007/s10854-013-1258-3", "abstract": "The Ni-Co films were produced by using the electrodeposition technique from the electrolytes with different Ni(SO3 center dot NH2)(2)center dot 4H(2)O concentrations (from 0 to 0.45 M). The Ni content of the films changed gradually from 0 to 57 %. The Ni-Co system exhibited anomalous codeposition. For 0 at.% Ni content, the saturation magnetization, M-s of the film was found to be 1298 emu/cm(3), which is close to that of bulk Co (1420 emu/cm(3)). As the Ni content increased, M-s decreased since the M-s value of bulk Ni (480 emu/cm(3)) is lower than that of bulk Co. The coercivity, H-c, of Co film was found as 37 Oe. When the Ni content increased to 6 at.%, the H-c value dramatically increased to 109 Oe. The hexagonal closed packed (hcp) structure was observed for the films containing 0 and 6 at.% Ni. When the Ni content increased to 25 at.%, a mixed phase of face centered cubic (fcc) and hcp structure (mostly fcc) was detected. For further increase in Ni content (39 and 57 at.%), the peaks which occurred from the reflections of fcc phase were obtained. As a result of structural analysis, the Co content can be determined as 62-64 at.% for changing of crystal structure. The transfiguration from spherical granular to acicular surface morphology occurred around 75 at.% Co content. Magnetoresistance of the films was measured and it was found that the films show anisotropic magnetoresistance.", "author": [ { "family": "Karpuz", "given": " Ali" }, { "family": "Kockar", "given": " Hakan" }, { "family": "Alper", "given": " Mursel" } ], "container_title": "JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS", "id": "13759", "issue": "9", "issued": { "date-parts": [ [ 2013, 1, 1 ] ] }, "page": "3376-3381", "title": "Scanning of nickel sulfamate concentration in electrodeposition bath used for production of Ni-Co alloys", "type": "article-journal", "volume": "24" }
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