Matching effect and dynamic phases of vortex matter in Bi2Sr2CaCu2O8 nanoribbon with a periodic array of holes

被引：47

作者：

Avci, S. ^{[1
]}

Xiao, Z. L. ^{[1
,2
]}

Hua, J. ^{[1
,2
]}

Imre, A. ^{[3
]}

Divan, R. ^{[3
]}

Pearson, J. ^{[2
]}

Welp, U. ^{[2
]}

Kwok, W. K. ^{[2
]}

Crabtree, G. W. ^{[2
]}

机构：

[1] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA

[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[3] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 04期

关键词：

arrays; bismuth compounds; calcium compounds; flux pinning; high-temperature superconductors; melting; nanostructured materials; strontium compounds; FLUX-FLOW INSTABILITY; SUPERCONDUCTING FILMS; LATTICE; YBA2CU3O7-DELTA; RESISTIVITY; TRANSITION; VORTICES; DEFECTS; LIQUID;

D O I：

10.1063/1.3473783

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report investigations on the dynamics of vortex matter with periodic pinning in crystalline Bi2Sr2CaCu2O8 nanoribbons containing an array of nanoscale holes. We found that the matching effect is enhanced near the melting field and persists to higher fields beyond the melting line. We attribute this enhancement to the existence of a soft-solid phase and a mixture of solid-liquid phases near the melting line, enabling the vortices to pin more effectively. We observed distinct regions in the voltage-current curves attributed to transitions of various dynamic phases which also account for the driving current dependent appearance of the matching effect. (C) 2010 American Institute of Physics. [doi:10.1063/1.3473783]

引用

页数：3

共 19 条

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