Nanostripes in GdBa2Cu3Ox high-Tc superconductors

被引：2

作者：

Koblischka, M. R. ^{[1
]}

Winter, M. ^{[1
]}

Das, P. ^{[1
]}

Hartmann, U. ^{[1
]}

Koblischka-Veneva, A. ^{[2
]}

Muecklich, F. ^{[2
]}

机构：

[1] Univ Saarland, Inst Expt Phys, D-66041 Saarbrucken, Germany

[2] Univ Saarland, Inst Funct Mat, D-66041 Saarbrucken, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2008年 / 151卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

GdBa2Cu3Ox; nanostripes; orientation; EBSD;

D O I：

10.1016/j.mseb.2008.02.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-T-c superconductors with light rare earth (LRE) elements instead of Y exhibit nanoscale stripe structures on the surface as observed by atomic force microscopy (AFM) and scanning tunneling microscopy (STM) scans. Within the GdBa2Cu3Ox (GdBCO) system exhibiting relatively high critical current densities, nanoclusters arranged in a stripe-like fashion are observed in undoped material, while adding of nanoparticles (ZnO2 center dot ZrO2) leads to the formation of nanostripes as observed in other LRE superconductors. The nanostripes in doped GdBCO exhibit periodicties between 20 and 50 nm and corresponding step heights of 0.3-0.8 nm. Using polarized light microscopy and electron backscatter diffraction (EBSD) analysis, we determined the direction of the nanostripes with respect to the known twin structure. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：74 / 78

页数：5