Spontaneous formation of spiral-like patterns with distinct periodic physical properties by confined electrodeposition of Co-In disks
Gonzalez-Rosillo, Juan C.
López-Barberá, José F.
Baró Maria D.
- Journal Article
Rights / licenseCreative Commons Attribution 4.0 International
Spatio-temporal patterns are ubiquitous in different areas of materials science and biological systems. However, typically the motifs in these types of systems present a random distribution with many possible different structures. Herein, we demonstrate that controlled spatio-temporal patterns, with reproducible spiral-like shapes, can be obtained by electrodeposition of Co-In alloys inside a confined circular geometry (i.e., in disks that are commensurate with the typical size of the spatio-temporal features). These patterns are mainly of compositional nature, i.e., with virtually no topographic features. Interestingly, the local changes in composition lead to a periodic modulation of the physical (electric, magnetic and mechanical) properties. Namely, the Co-rich areas show higher saturation magnetization and electrical conductivity and are mechanically harder than the In-rich ones. Thus, this work reveals that confined electrodeposition of this binary system constitutes an effective procedure to attain template-free magnetic, electric and mechanical surface patterning with specific and reproducible shapes Show more
Journal / seriesScientific Reports
Pages / Article No.
PublisherNature Publishing Group
SubjectElectrochemistry; Materials for devices; Surfaces, interfaces and thin films
Organisational unit03627 - Nelson, Bradley J. / Nelson, Bradley J.
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