期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 304, 期 1, 页码 60-63出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2006.02.008
关键词
magnetic alloys; copper; cobalt; magnetic multilayers; organic additives; electroplating; magnetism; annealing
We investigated the change of magnetic properties of the electroplated Cu/Co alloys and multilayers caused by organic additives and high temperature annealing. When plated with a pure Cu/Co electrolyte, the alloy contained similar to 25% of Cu and similar to 75% of Co. The alloy was made of hcp-Co, fcc-Co and Cu(1 1 1) and was super-paramagnetic at room temperature. As we add a few organic additives in the plating electrolyte, the hcp-Co of the films disappeared. The organic additives contained in the electrolytes changed paramagnetic Cu/Co multilayers to ferromagnets. High-temperature thermal annealing increased coercivity due to the growth of the Co grains. (C) 2006 Elsevier B.V. All rights reserved.
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