Fabrication of artificial crystals with tunable lattice constant via self-assembly of floating magnetic particles

被引：6

作者：

Saado, Y

Golosovsky, M ^{[1
]}

Davidov, D

Frenkel, A

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[2] MSI Engn Software Ltd, Tel Aviv, Israel

来源：

SYNTHETIC METALS | 2001年 / 116卷 / 1-3期

关键词：

photonic bandgap materials; electromagnetic crystals; self-assembly; magnetic interactions;

D O I：

10.1016/S0379-6779(00)00408-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report stable ordered arrays of millimeter-size magnetic particles floating on a liquid surface. Self-assembly into a regular two-dimensional lattice results from lateral magnetic interactions between the particles. The lattice constant may be easily tuned by the application of external magnetic field. The array symmetry is designed by using different particle shapes, magnets, and magnet position inside the particle, so that complex symmetries may be achieved. Three-dimensional ordered arrays are obtained in a stack of containers with Roaring magnets. Computer simulations of electromagnetic wave propagation in such three-dimensional structures suggest an opening of a tunable photonic bandgap in the microwave range. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：427 / 432

页数：6

共 23 条

[1]

ASHER SA, 1997, PHOTONIC OPTOELECTRO, P495

[2] ORDERING AND PHASE-TRANSITIONS OF CHARGED-PARTICLES IN A CLASSICAL FINITE 2-DIMENSIONAL SYSTEM [J].