165677 20260113234334.0 doi 10.1016/j.molliq.2020.113713 sideral 118427 ART-2020-118427 eng Sanz-Felipe, Ángel (orcid)0000-0002-2464-5626 Optical transmission of ferrofluids exposed to a magnetic field: Analysis by electromagnetic wave propagation numerical methods 2020 Optical transmission changes in ferrofluids when exposed to magnetic fields are difficult to predict: under similar conditions, exposure to a magnetic field may cause increasing, decreasing or even non monotonous optical transmission evolution in different samples. Absence or presence of coalescence has been conjectured as the key phenomenon that causes the different behaviors, but to our knowledge without any theoretical support. In the first part of this work, experimental data are provided in order to illustrate the different possible trends that may be observed. In the second part, a set of some thousands of particles is considered in different arrangements: distributed at random, grouped in single chains or with aggregates of several chains. The optical transmission of each arrangement is obtained by means of the CST software. The numerical results obtained provide a theoretical connection between the optical transmission experimental trends observed and the processes of chain formation and aggregation by coalescence, which facilitates a much deeper understanding of the phenomena observed. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-17R info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 6.165 2020 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 4 / 37 = 0.108 2020 Q1 T1 CHEMISTRY, PHYSICAL 43 / 162 = 0.265 2020 Q2 T1 0.929 2020 Atomic and Molecular Physics, and Optics 2020 Q1 Condensed Matter Physics 2020 Q1 Spectroscopy 2020 Q1 Materials Chemistry 2020 Q1 Physical and Theoretical Chemistry 2020 Q1 Electronic, Optical and Magnetic Materials 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Barba, Ismael Martín Alonso, Juan Carlos Universidad de Zaragoza (orcid)0000-0002-8738-753X 2002 247 Universidad de Zaragoza Dpto. Física Aplicada Área Electromagnetismo 315 (2020), 113713 1-8 J. mol. liq. Journal of Molecular Liquids 0167-7322 811214 http://zaguan.unizar.es/record/165677/files/texto_completo.pdf Postprint 2209062 http://zaguan.unizar.es/record/165677/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:165677 articulos driver 2026-01-13-22:05:40 ARTICLE