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Soba, A.; González, G.; Calivar, L.; Marshall, G. "Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields" (2012) Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 86(5)
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Abstract:

Electrochemical deposition (ECD) in thin cells in a vertical position relative to gravity, subject to an external uniform magnetic field, yields a growth pattern formation with dense branched morphology with branches tilted in the direction of the magnetic force. We study the nature of the inclined growth through experiments and theory. Experiments in ECD, in the absence of magnetic forces, reveal that a branch grows by allowing fluid to penetrate its tip and to be ejected from the sides through a pair of symmetric vortices attached to the tip. The upper vortices zone defines an arch separating an inner zone ion depleted and an outer zone in a funnel-like form with a concentrated solution through which metal ions are carried into the tip. When a magnetic field is turned on, vortex symmetry is broken, one vortex becoming weaker than the other, inducing an inclination of the funnel. Consequently, particles entering the funnel give rise to branch growth tilted in the same direction. Theory predicts, in the absence of a magnetic force, funnel symmetry induced through symmetric vortices driven by electric and gravitational forces; when the magnetic force is on, it is composed with the pair of clockwise and counterclockwise vortices, reducing or amplifying one or the other. In turn, funnel tilting modifies particle trajectories, thus, growth orientation. © 2012 American Physical Society.

Registro:

Documento: Artículo
Título:Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields
Autor:Soba, A.; González, G.; Calivar, L.; Marshall, G.
Filiación:Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
INQUIMAE - Departamento de Química Inorgánica, Analítica y Química Física, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Laboratorio de Sistemas Complejos, Departamento de Computació, Universidad de Buenos Aires, Buenos Aires, Argentina
Laboratorio de Sistemas Complejos, Departamento de Computación, Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
Palabras clave:Concentrated solution; Electrochemical deposition; Gravitational forces; Growth orientations; Growth patterns; Magnetic force; Particle trajectories; Symmetric vortex; Thin cells; Thin-layer electrodeposition; Vertical positions; Vortex symmetry; Experiments; Magnetic fields; Metal ions; Reduction; Vortex flow
Año:2012
Volumen:86
Número:5
DOI: http://dx.doi.org/10.1103/PhysRevE.86.051612
Título revista:Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Título revista abreviado:Phys. Rev. E Stat. Nonlinear Soft Matter Phys.
ISSN:15393755
CODEN:PLEEE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v86_n5_p_Soba

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Citas:

---------- APA ----------
Soba, A., González, G., Calivar, L. & Marshall, G. (2012) . Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 86(5).
http://dx.doi.org/10.1103/PhysRevE.86.051612
---------- CHICAGO ----------
Soba, A., González, G., Calivar, L., Marshall, G. "Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 86, no. 5 (2012).
http://dx.doi.org/10.1103/PhysRevE.86.051612
---------- MLA ----------
Soba, A., González, G., Calivar, L., Marshall, G. "Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields" . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, vol. 86, no. 5, 2012.
http://dx.doi.org/10.1103/PhysRevE.86.051612
---------- VANCOUVER ----------
Soba, A., González, G., Calivar, L., Marshall, G. Nature of inclined growth in thin-layer electrodeposition under uniform magnetic fields. Phys. Rev. E Stat. Nonlinear Soft Matter Phys. 2012;86(5).
http://dx.doi.org/10.1103/PhysRevE.86.051612