کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5490391 1524790 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-assembly of colloids with magnetic caps
ترجمه فارسی عنوان
خودآموزی کلوئید ها با کلاه های مغناطیسی
کلمات کلیدی
کلوئید های بسته بندی شده مغناطیسی، خودمجموعه، مطالعه نظری، زنجیره ای متناوب، سه زنجیره متقارن چرخشی،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
In our earlier work (Steinbach et al., 2016 [1]) we investigated a homogeneous system of magnetically capped colloidal particles that self-assembled via two structural patterns of different symmetry. The particles could form a compact, equilateral triangle with a three-fold rotational symmetry and zero dipole moment and a staggered chain with mirror symmetry with a net magnetisation perpendicular to the chain. The system exhibited a bistability already in clusters of three particles. Based on observations of a real magnetic particles system, analytical calculations and molecular dynamics simulations, it has been shown that the bistability is a result of an anisotropic magnetisation distribution with rotational symmetry inside the particles. The present study is a logical extension of the above research and forms a preparatory stage for the study of a self-assembly of such magnetic particles under the influence of an external magnetic field. Since the magnetic field is only an additive contribution to the total ground state energy, we can study the interparticle interaction energies of candidate ground state structures based on the field-free terms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 431, 1 June 2017, Pages 214-217
نویسندگان
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