Electrodeposited near-equiatomic CoPt thick films

O. Berkh; Yu Rosenberg; Y. Shacham-Diamand; E. Gileadi

doi:10.1149/1.2838047

Electrodeposited near-equiatomic CoPt thick films

O. Berkh^*, Yu Rosenberg, Y. Shacham-Diamand, E. Gileadi

^*Corresponding author for this work

Department of Electrical Engineering - Physical Eng.

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

CoPt films, 10-16 μm thick, of near-equiatomic composition were deposited from sodium citrate electrolyte containing [Pt (NO2) 2 (NH3) 2] 0 complex and CoSO4 as the source of the Pt and Co, respectively. The effect of the total ammonia (NH 4+ + NH3) and citrate concentrations on the deposition current efficiency and alloy composition was determined. Annealing of films with 42-48 atom % Pt resulted in a dramatic increase of their coercivity and squareness. The annealed films consisted of A1 (face-centered cubic) and L1o (face-centered tetragonal) phases. The presence of an additional CoO phase in the films contributed to an increase of their coercivity.

Original language	English
Pages (from-to)	D38-D41
Journal	Electrochemical and Solid-State Letters
Volume	11
Issue number	4
DOIs	https://doi.org/10.1149/1.2838047
State	Published - 2008

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title = "Electrodeposited near-equiatomic CoPt thick films",

abstract = "CoPt films, 10-16 μm thick, of near-equiatomic composition were deposited from sodium citrate electrolyte containing [Pt (NO2) 2 (NH3) 2] 0 complex and CoSO4 as the source of the Pt and Co, respectively. The effect of the total ammonia (NH 4+ + NH3) and citrate concentrations on the deposition current efficiency and alloy composition was determined. Annealing of films with 42-48 atom % Pt resulted in a dramatic increase of their coercivity and squareness. The annealed films consisted of A1 (face-centered cubic) and L1o (face-centered tetragonal) phases. The presence of an additional CoO phase in the films contributed to an increase of their coercivity.",

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AU - Berkh, O.

AU - Rosenberg, Yu

AU - Shacham-Diamand, Y.

AU - Gileadi, E.

PY - 2008

Y1 - 2008

N2 - CoPt films, 10-16 μm thick, of near-equiatomic composition were deposited from sodium citrate electrolyte containing [Pt (NO2) 2 (NH3) 2] 0 complex and CoSO4 as the source of the Pt and Co, respectively. The effect of the total ammonia (NH 4+ + NH3) and citrate concentrations on the deposition current efficiency and alloy composition was determined. Annealing of films with 42-48 atom % Pt resulted in a dramatic increase of their coercivity and squareness. The annealed films consisted of A1 (face-centered cubic) and L1o (face-centered tetragonal) phases. The presence of an additional CoO phase in the films contributed to an increase of their coercivity.

AB - CoPt films, 10-16 μm thick, of near-equiatomic composition were deposited from sodium citrate electrolyte containing [Pt (NO2) 2 (NH3) 2] 0 complex and CoSO4 as the source of the Pt and Co, respectively. The effect of the total ammonia (NH 4+ + NH3) and citrate concentrations on the deposition current efficiency and alloy composition was determined. Annealing of films with 42-48 atom % Pt resulted in a dramatic increase of their coercivity and squareness. The annealed films consisted of A1 (face-centered cubic) and L1o (face-centered tetragonal) phases. The presence of an additional CoO phase in the films contributed to an increase of their coercivity.

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JO - Electrochemical and Solid-State Letters

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Electrodeposited near-equiatomic CoPt thick films

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