Glassy dynamics of Josephson arrays on a dice lattice

被引：23

作者：

Cataudella, V ^{[1
]}

Fazio, R

机构：

[1] Univ Naples Federico II, Coherentia INFM, Unita Napoli, I-80126 Naples, Italy

[2] Univ Naples Federico II, Dipartimento Sci Fisiche, I-80126 Naples, Italy

[3] INFM, NEST, I-56126 Pisa, Italy

[4] Scuola Normale Super Pisa, I-56126 Pisa, Italy

来源：

EUROPHYSICS LETTERS | 2003年 / 61卷 / 03期

关键词：

D O I：

10.1209/epl/i2003-00180-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this letter we study the phase diagram and the approach to the equilibrium of Josephson junction arrays on a dice lattice for two different values of the magnetic frustration (f = 1/2, 1/3). In both cases, the array undergoes a Berezinskii-Kosterlitz-Thouless-like phase transition. For the fully frustrated array, f = 1/2, we find evidence of a glassy behavior although the system has no disorder. For comparison we study the dynamics of the array at a different value of frustration ( f = 1/3) and find no trace of glassy dynamics.

引用

页码：341 / 347

页数：7

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