Property changes of electroplated Cu/Co alloys and multilayers by organic additives

Hong, Kimin; Lee, Jungju; Lee, Jinhan; Ko, Young Chun; Chung, J.-S.; Kim, Jin-Gyu

doi:10.1016/j.jmmm.2006.02.008

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…Moreover, absorption of ν( 2 4 H PO  ) newly appeared at 1040 cm -1 [24]. The Co-site seems to be more sensitive to hydrogen-phosphate ion than that of Fe in the Co-Fe alloy, and the sensitivity to was thus decreased at the highest Fe content in alloy, as shown in Table 1.…”

Section: Sensing Performance Of the Metal Film Electrodementioning

confidence: 88%

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Electrodeposited Cobalt-Iron Alloy Thin-Film for Potentiometric Hydrogen Phosphate-Ion Sensor

Kidosaki¹,

Takase²

2012

JST

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A cobalt-iron alloy thin-film electrode-based electrochemical hydrogen-phosphate-ion sensor was prepared by electrodepositing on an Au-coated Al2O3 substrate from an aqueous solution of metal-salts. The use of a cobalt-iron alloy electrode greatly improved the hydrogen-ion sensor response performance, i.e., the sensor worked stably for more than 7 weeks and showed a quick response time of several seconds. Among the cobalt and iron alloy systems tested, the electrodeposited Co58Fe42 thin-film electrode showed the best EMF response characteristics, i.e., the sensor exhibited a linear potentiometric response to hydrogen-phosphate ion at the concentration range between 1.0 × 10–5 and 1.0 × 10–2 M with the slope of –43 mV/decade at pH 5.0 and at 30℃. A sensing mechanism of the Co-based potentiometric hydrogen-phosphate ion sensor was proposed on the basis of results of instrumental analysis

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Section: Sensing Performance Of the Metal Film Electrodementioning

confidence: 88%

“…FT-IR spectra of the Co 58 Fe 42 thin-film electrode before and after 2 4 H PO  measurements are shown in tively, appeared before the measurement [23,24]. Absorptions at around 1030, 1100 and 1600 cm -1 should be indicated for ν(…”

Section: Sensing Performance Of the Metal Film Electrodementioning

confidence: 96%

Electrodeposited Cobalt-Iron Alloy Thin-Film for Potentiometric Hydrogen Phosphate-Ion Sensor

Kidosaki¹,

Takase²

2012

JST

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“…Unlike the presented study, it was reported in the study by Rӓtzke et al [12] that the annealing process up to 350 °C caused an increase in the H c value of the sputtered Co/Cu film. In addition, high temperature thermal annealing increased the coercivity values due to the growth of Co grains in the study [14]. M r /M s values were also determined in this context.…”

Section: The Effect Of Different Annealing Temperaturesmentioning

confidence: 67%

“…In another study done by Albini et al [13], the effect of annealing on the magnetic properties of Co/Cu multilayered structures produced by the sputtering technique was investigated and it was revealed that the annealing process improves the quality of the multilayer structures. The effects of organic additives and high temperature annealing on magnetic properties of Cu/Co alloys and multilayer structures produced by electroplating technique were investigated in a study by Hong et al [14]. In addition to these studies, in a study of Małkiński et al [15], the magnetic and magnetoresistance properties of sputtered Co/Cu multilayer structures as deposited and after annealing were discussed and it was understood that the annealing process had important effects on these properties of multilayer structures, such as a change in the shape of the hysteresis loop and a remarkable increase in the intensity of the magneto resistance hysteresis peaks.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the effects of Cu layer thickness and annealing temperature under air atmosphere on the properties of Co/Cu multilayer films

Karpuz,

Köçkar,

Kaplan

2023

Phys. Scr.

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Co/Cu films were deposited by the sputtering technique. The effects of different thicknesses of non-magnetic (Cu) layers and annealing temperature on magneto-structural properties were investigated. Different thicknesses of Cu layers were determined as 34 nm, 10 nm, 4 nm. Additionally, two annealed situations were considered to investigate the annealing effect. While the first one is exposing the films to 80 oC and 130 oC for 240 s, second one is annealing the films at 180 oC for different exposure times (50 s and 150 s). All films that have different thicknesses of Cu layers crystallized in (111) plane of the face centered cubic (fcc) structure. The intensity of this peak increased with increasing Cu layers thickness. Variation in the thickness of Cu layers has an important effect on the film surface. Saturation magnetization (Ms), coercivity (Hc) and squareness (Mr/Ms, Mr: remanent magnetization) were considerably affected by variation of the Cu content and film surface caused by the change in the thickness of the Cu layers. The film with 4 nm Cu layer thickness has the highest Ms, lowest Hc values and high Mr/Ms ratio. This indicates magnetically high efficient compared to the other films in the same series. The fcc structure continued to exist for the films annealed at 80 oC and 130 oC for 240 s. It was found that the annealing procedure transfigured the film surface and the differences in Ms and Hc values can be mostly attributed to this transfiguration because of the same film content revealed. An increase in Ms value, and a slight decrease in Hc and Mr/Ms values were detected for the annealed film at 130 oC, compared to the film annealed at 80 oC. It was also seen that the film structure was damaged at 180 oC because of excessive heat transfer.

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Initial stages of the electrocrystallization of Co–Cu alloys on GCE from the Co rich electrolytes

Gu¹

2007

Electrochimica Acta

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Property changes of electroplated Cu/Co alloys and multilayers by organic additives

Cited by 10 publications

References 11 publications

Electrodeposited Cobalt-Iron Alloy Thin-Film for Potentiometric Hydrogen Phosphate-Ion Sensor

Electrodeposited Cobalt-Iron Alloy Thin-Film for Potentiometric Hydrogen Phosphate-Ion Sensor

Investigation of the effects of Cu layer thickness and annealing temperature under air atmosphere on the properties of Co/Cu multilayer films

Initial stages of the electrocrystallization of Co–Cu alloys on GCE from the Co rich electrolytes

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