SUPERCONDUCTING AND STRUCTURAL-PROPERTIES OF EUBA2CU3O7-DELTA ULTRATHIN FILMS DEPOSITED ON MGO(100) SUBSTRATES USING MAGNETRON SPUTTERING

被引：44

作者：

MICHIKAMI, O

ASAHI, M

ASANO, H

机构：

[1] NTT Electrical Communication Laboratories, Tokai, lbaraki

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1990年 / 29卷 / 02期

关键词：

As-grown film; EuBaCuO film; Magnetron sputtering; Oxide superconductor; Ultrathin film;

D O I：

10.1143/JJAP.29.L298

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

EuBa2Cu3O7-δthin films were produced on MgO(100) substrates at 580°C using planar-type magnetron sputtering and were studied by X-ray diffraction and RHEED. The c-oriented films were epitaxially grown with a crystal orientation of [110]EuBaCuO//[010]MgO. Films more than 1000 Å thick exhibited Tcendpoints of ∼90 K. As film thickness decreased, superconducting properties deteriorated. However, even films with 2-unit-cell thickness became superconducting. The cause of the deterioration of superconducting properties in ultrathin films is discussed on the basis of the relationship between lattice matching and structural properties. © 1990 IOP Publishing Ltd.

引用

页码：L298 / L301

页数：4

共 12 条

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