title: Spontaneous formation of spiral-like patterns with distinct periodic physical properties by confined electrodeposition of Co-In disks.
abstract: 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.
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
authors.forename: Irati
authors.initials: I
authors.lastname: Golvano-Escobal
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, E-08193 Bellaterra, Spain.
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Gonzalez-Rosillo
authors.affiliation: Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
authors.forename: Neus
authors.initials: N
authors.lastname: Domingo
authors.affiliation: Institute of Microelectronics of Barcelona (IMB-CNM), Campus UAB, E-08193 Bellaterra, Spain.|Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), E-08193, Bellaterra, Spain.
authors.forename: Xavi
authors.initials: X
authors.lastname: Illa
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.|Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.
authors.forename: José Francisco
authors.initials: JF
authors.lastname: López-Barberá
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
authors.forename: Jordina
authors.initials: J
authors.lastname: Fornell
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
authors.forename: Pau
authors.initials: P
authors.lastname: Solsona
authors.affiliation: Alba Synchrotron Light Facility, CELLS, E-08280 Bellaterra, Spain.
authors.forename: Lucia
authors.initials: L
authors.lastname: Aballe
authors.affiliation: Alba Synchrotron Light Facility, CELLS, E-08280 Bellaterra, Spain.
authors.forename: Michael
authors.initials: M
authors.lastname: Foerster
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
authors.forename: Santiago
authors.initials: S
authors.lastname: Suriñach
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
authors.forename: Maria Dolors
authors.initials: MD
authors.lastname: Baró
authors.affiliation: Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, E-08193 Bellaterra, Spain.
authors.forename: Teresa
authors.initials: T
authors.lastname: Puig
authors.affiliation: Institute of Robotics and Intelligent Systems (IRIS), ETH Zürich, CH-8092 Zürich, Switzerland.
authors.forename: Salvador
authors.initials: S
authors.lastname: Pané
authors.affiliation: Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, E-08193 Barcelona, Spain.|ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain.
authors.forename: Josep
authors.initials: J
authors.lastname: Nogués
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.
authors.forename: Eva
authors.initials: E
authors.lastname: Pellicer
authors.affiliation: Departament de Física, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.|ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain.
authors.forename: Jordi
authors.initials: J
authors.lastname: Sort
mesh_terms: D000497:Alloys / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry*; D007204:Indium / Q000737:chemistry*; D060328:Magnetic Phenomena; D010507:Periodicity
chemical_list: D000497:Alloys; D007204:Indium; D003035:Cobalt