Complex Ordered Patterns in Mechanical Instability Induced Geometrically Frustrated Triangular Cellular Structures

被引：123

作者：

Kang, Sung Hoon ^{[1
]}

Shan, Sicong ^{[1
]}

Kosmrlj, Andrej ^{[2
]}

Noorduin, Wim L. ^{[1
]}

Shian, Samuel ^{[1
]}

Weaver, James C. ^{[3
]}

Clarke, David R. ^{[1
]}

Bertoldi, Katia ^{[1
,4
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] Harvard Univ, Wyss Inst Biol Inspired Engn, Cambridge, MA 02138 USA

[4] Harvard Univ, Kavli Inst, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 09期

关键词：

ARTIFICIAL SPIN-ICE; ISING PYROCHLORE MAGNETS; LATTICE;

D O I：

10.1103/PhysRevLett.112.098701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Geometrical frustration arises when a local order cannot propagate throughout the space because of geometrical constraints. This phenomenon plays a major role in many systems leading to disordered ground-state configurations. Here, we report a theoretical and experimental study on the behavior of buckling-induced geometrically frustrated triangular cellular structures. To our surprise, we find that buckling induces complex ordered patterns which can be tuned by controlling the porosity of the structures. Our analysis reveals that the connected geometry of the cellular structure plays a crucial role in the generation of ordered states in this frustrated system.

引用

页数：5

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