MICRO-RAMAN, SEM AND X-RAY CHARACTERIZATION OF (PB0.6CU0.5)LASRCAN-1CUNOX (N=1, 2) CERAMICS

被引：8

作者：

ABRASHEV, MV ^{[1
]}

HADJIMITOV, VN ^{[1
]}

DINOLOVA, E ^{[1
]}

BOZUKOV, LN ^{[1
]}

机构：

[1] INST APPL MINERAL,BU-1000 SOFIA,BULGARIA

来源：

PHYSICA C | 1993年 / 215卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(93)90245-L

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ceramic samples of (Pb0.6Cu0.5)LaSrCan-1CunOx, (n= 1, 2) were synthesized in air and characterized using micro-Raman spectroscopy, scanning electron microscopy and X-ray diffraction. In the (Pb0.6Cu0.5)LaSrCuOx ceramics the following phases were identified: (Pb0.5Cu0.5)LaSrCuO5+delta, (Sr,La)1(Pb,Cu)1O3, (Sr,Ca)14Cu24O41 and (La8-xSrx)Cu8O20-delta; in the (Pb0.6Cu0.5)LaSrCaCu2Ox ceramics: (Pb0.5Cu0.5)LaSrCaCu2O7-delta, (Sr,Ca,La)14Cu24O41, (Sr,Ca,La)1(Pb,Cu)1O3 and Ca2PbO4. The polarized Raman spectra of (Pb0.5Cu0.5)LaSrCan-1CunOx (n=1, 2) are discussed accounting for the disorder in the (Pb,Cu)-O planes. A comparison of the (Sr,Ca,La)1(Pb,Cu)1O3 pseudocubic perovskite phase with the Dou's phase (the hexagonal Pb3Sr2Ca2Cu1Ox) suggests that the structure of the latter compound could be considered as a slightly deformed perovskite. Raman spectra of the other additional phases were also measured and discussed.

引用

页码：421 / 428

页数：8

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