A single-bath electrodeposition method was developed to integrate multilayer Ag/Co nanowires with a commercial anodic alumina oxide (AAO) template with a pore diameter of 100-200 nm. An electrolyte system containing silver nitride and cobalt sulfide was studied using cyclic voltammetry, and the electrodeposition rate was varied to optimize the electrodeposition conditions. A constant stepwise potential and a variable cation ratio of [Co²⁺]/[Ag⁺] were used during electrodeposition. After the dissolution of the template in aqueous NaOH solution, multilayered Ag/Co nanowires were obtained with a composition of [Co]/[Ag₈₀Co₂₀], as identified by XRD and TEM, when [Co²⁺]/[Ag⁺] = 150. By annealing at 200°C for 1 h, uniformly structured (Co₉₉.₅₇/Ag₁₀₀) nanowires were obtained. Compared with pure Co nanowires, the magnetic hysteresis loops showed a greater magnetic anisotropy for (Co₉₉.₅₇/Ag₁₀₀) nanowires than for pure Co nanowires, corresponding to a change in the easy axis upon magnetization.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3773445 | PMC |
| http://dx.doi.org/10.1155/2013/837048 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers.
Nat Commun
October 2023
Universität Hamburg, Jungiusstrasse 11a, 20355, Hamburg, Germany.
Seeking to enhance the strength of the interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) through a combination of atomic and Rashba type spin-orbit coupling (SOC) we studied the strength and the thickness evolution of effective interlayer coupling in Co/Ag/Co trilayers by means of surface sensitive magneto-optical measurements that take advantage of the light penetration depth. Here, we report the observation of oscillatory, thickness-dependent chiral interaction between ferromagnetic layers. Despite the weakness of the Ag atomic SOC, the IL-DMI in our trilayers is orders of magnitude larger than that of known systems using heavy metals as a spacer except of recently reported -0.
View Article and Find Full Text PDFDeep Neural Network-Evaluated Thermal Conductivity for Two-Phase WC-M (M = Ag, Co) Cemented Carbides.
Materials (Basel)
September 2022
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.
DNN (Deep Neural Network) is one kind of method for artificial intelligence, which has been applied in various fields including the exploration of material properties. In the present work, DNN, in combination with the 10-fold cross-validation, is applied to evaluate and predict the thermal conductivities for two-phase WC-M (M = Ag, Co) cemented carbides. Multi-layer DNNs were established by learning the measured thermal conductivities for the WC-Ag and WC-Co systems.
View Article and Find Full Text PDFTowards a Better Understanding of Delamination of Multilayer Flexible Packaging Films by Carboxylic Acids.
ChemSusChem
October 2021
Laboratory for Circular Process Engineering (LCPE), Department of Green Chemistry and Technology, Ghent University, Graaf Karel De Goedelaan 5, 8500, Kortrijk, Belgium.
Recycling multilayer plastic packaging is challenging due to its intrinsic compositional heterogeneity. A promising route to increase recycling rates for these materials is delamination, which allows recycling the polymers separately. Yet, this process is not well understood on a fundamental level.
View Article and Find Full Text PDFA preliminary study on the synthesis and characterization of multilayered Ag/Co magnetic nanowires fabricated via the electrodeposition method.
ScientificWorldJournal
April 2014
Department of Chemical and Materials Engineering, Ming Hsin University of Science and Technology, Hsinfeng, Hsinchu 304, Taiwan.
A single-bath electrodeposition method was developed to integrate multilayer Ag/Co nanowires with a commercial anodic alumina oxide (AAO) template with a pore diameter of 100-200 nm. An electrolyte system containing silver nitride and cobalt sulfide was studied using cyclic voltammetry, and the electrodeposition rate was varied to optimize the electrodeposition conditions. A constant stepwise potential and a variable cation ratio of [Co²⁺]/[Ag⁺] were used during electrodeposition.
View Article and Find Full Text PDFGrowth and structure of Ag on bilayer Co nanoislands on Cu(111).
J Phys Condens Matter
April 2010
Institut for Fysik og Nanoteknologi, and Interdisciplinary Nanoscience Center (iNANO), Aalborg Universitet, Skjernvej 4A, Aalborg, Denmark.
We have studied the growth of Ag on bilayer high Co nanoislands on Cu(111) using scanning tunneling microscopy. Noble metal capping of magnetic nanostructures is known to influence the magnetism and knowledge of the growth is therefore important. We find that Ag preferentially nucleates on the Co nanoislands, initially leaving the free Cu sites clean.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!