INSITU FABRICATION OF Y-BA-CU-OXIDE THIN-FILMS BY PULSED LASER DEPOSITION

被引：7

作者：

BOWMAN, RM

FERGUSON, AI

PEGRUM, CM

机构：

[1] Department of Physics And Applied Physics, University of Strathclyde., Glasgow

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/20.133458

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We report the in-situ deposition of laser-ablated YBa2Cu3O7-delta films on MgO substrates, using the third and second harmonics of a Nd-YAG laser. We have investigated the conditions needed during post-deposition oxygenation to produce the best films. Our highly-orientated samples are made using the third harmonic (wavelength lambda = 355nm) on < 100 > MgO and have a transition temperature T(c) of 85K, a critical current density J(c) of 1.5 x 10(5)A/cm2 at 77K, which rises to 9 x 10(6)A/cm2 at 4.2K. Films made with the second harmonic on MgO are, as expected, markedly poorer in quality. Highly-orientated films have also been made on < 110 > and < 100 > SrTiO3 with lambda = 355nm.

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页码：1459 / 1462

页数：4

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