Properties of in-situ laser-pulsed deposited YBCO thin films on MgO with SrTiO3 buffer layer

被引：35

作者：

Boffa, V

Petrisor, T

Ciontea, L

Gambardella, U

Barbanera, S

机构：

[1] TECH UNIV CLUJ,DEPT PHYS,R-3400 CLUJ NAPOCA,ROMANIA

[2] IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ROME,ITALY

[3] CNR,IESS,I-00156 ROME,ITALY

来源：

PHYSICA C | 1996年 / 260卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(96)00107-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Epitaxial YBa2Cu3O7-y films were grown by pulsed-laser ablation on SrTiO3 buffered (100) MgO substrate without any pre- or postannealing of the substrate or STO buffer layer. The role of the SrTiO3 layer is to provide a better lattice mach to the YBCO film and to prevent the interaction between YBCO and MgO. The as-obtained YBCO films exhibit excellent structural and superconducting properties with T-c(R = 0) = 90 K, R(300)/R(100) = 2.8, Delta T = 0.8 K, J(c) approximate to 10(6) A/cm(2) (at 77 K and zero magnetic field) and a full width half maximum of the (005) YBCO peak of about 0.18 degrees, These characteristics are very close to those of the YBCO film deposited on SrTiO, single crystal.

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页码：111 / 116

页数：6

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