Electrochemical Growth of Iron Arborescences under In-Plane Magnetic Field: Morphology Symmetry Breaking
| Autor: | Simona Bodea, P. Molho, L. Vignon, Rafik Ballou |
|---|---|
| Přispěvatelé: | Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Louis Néel (LLN), Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM) |
| Jazyk: | angličtina |
| Rok vydání: | 1999 |
| Předmět: |
Materials science
Condensed matter physics Field (physics) Plane (geometry) General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Orientation (vector space) Dipole 0103 physical sciences PACS : 68.70.+w 05.70.Ln 75.90.+w 81.15.Pq [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Rectangle Symmetry breaking 010306 general physics 0210 nano-technology Energy (signal processing) |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 1999, 83, pp.art. 2612. ⟨10.1103/PhysRevLett.83.2612⟩ Physical Review Letters, 1999, 83, pp.art. 2612. ⟨10.1103/PhysRevLett.83.2612⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.83.2612⟩ |
| Popis: | Pattern formation in the electrochemical deposition of iron from a thin layer of $\mathrm{Fe}({\mathrm{SO}}_{4})$ aqueous solution was investigated in a circular geometry under a magnetic field applied in the plane of growth. Arborescent aggregates were obtained whose macroscopic morphology changes from circular in zero field to rectangular in finite field, one edge of the rectangle being parallel to the field. This field-induced symmetry breaking is explained as resulting from a selection at the microscopic scale of the orientation of the branches with respect to the field, associated with a minimization of the magnetic dipolar energy of the growing branches. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|