SYNTHESIS AND MICROWAVE CHARACTERISATION OF DC SPUTTERED Tl-Ba-Ca-Cu-O THIN FILMS.

被引：12

作者：

Morley, S. M. ^{[1
]}

Jenkins, A. P. ^{[2
]}

Su, L. Y. ^{[1
]}

Adams, M. J. ^{[3
]}

Dew-Hughes, D. ^{[2
]}

Grovenor, C. R. M. ^{[1
]}

机构：

[1] Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PJ, England

[2] Univ Oxford, Dept Engn, Oxford OX1 3PJ, England

[3] GEC Marconi Res Ctr, Chelmsford, Essex, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233595

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：

Single and double sided superconducting TI-Ba-Ca-Cu-O thin films (2 mu m thick) have been prepared on MgO (100) and LaAlO3 (100) substrates by DC sputtering followed by a two step anneal process. Films produced have To between 90 and 110 K with transport critical current densities typically 10(3) to 10(5) A cm(-2). Surface resistance (R-s) measurements at 50 GHz and 60 GHz over the temperature range 18-200 K have been made using a TE01, mode cavity end wall replacement technique giving R-s of 380 m Omega at 50 GHz and 77 K. Preliminary results for patterned resonator structures show an improvement in Q over silver at 3.2 GHz and 77 K.

引用

页码：1753 / 1756

页数：4

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