A NEW ORDERED OXYGEN-DEFICIENT PEROVSKITE SM2SR6CU8O17+DELTA - HREM STUDY OF PLD THIN-FILMS

被引：9

作者：

MERCEY, B ^{[1
]}

GUPTA, A ^{[1
]}

HERVIEU, M ^{[1
]}

RAVEAU, B ^{[1
]}

机构：

[1] IBM CORP,DIV RES,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1995年 / 116卷 / 02期

关键词：

D O I：

10.1006/jssc.1995.1218

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new ordered perovskite phase, Sm2Sr6Cu8O17+delta, has been synthesized by reflection high-energy electron diffraction monitored pulsed laser deposition technique, It exhibits a supercell with a similar to b similar to 2a(p) root 2 = 10.89 Angstrom and c = 3.66 Angstrom. A novel structure whose framework is built up from the intergrowth of [CuO2](infinity) and [Cu4O9](infinity) chains running along [010](p) and a Sm/Sr ordering is proposed from the electron microscopy observations, The analyses of the structure and the extended defects which arise in the matrix suggest that it should be possible to stabilize new intergrowths of SrCuO2 and SmSr3Cu4O9 structures. (C) 1995 Academic Press, Inc.

引用

页码：300 / 306

页数：7

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