POLARIZED RAMAN-SCATTERING FROM BI-BASED HTS SINGLE-CRYSTALS AND ITS RELATION TO THE LATTICE-DYNAMICS OF Y-123 COMPOUNDS

被引：18

作者：

ILIEV, MN

HADJIEV, VG

机构：

[1] Sofia Univ, Bulgaria

来源：

PHYSICA C | 1989年 / 157卷 / 03期

关键词：

Crystals - Lattice Vibrations - Oxides - Spectroscopy; Raman - Spectrum Analysis;

D O I：

10.1016/0921-4534(89)90276-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The polarized Raman spectra of Bi-HTS high temperature superconductor microcrystals with defined orientation of the c-axis and of different Bi-Ca-Sr-Cu composition (including close to 2122 and 2223) were measured at room temperature by means of the Raman microprobe technique. The Raman lines are assigned to certain lattice vibrations on the basis of comparison of the Raman spectra of Y-123 and Bi-HTS and of the structural data for Y-123 and Bi-2122. Earlier assignments of the Raman lines in the orthorhombic and tetragonal Y-123 are revised.

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页码：495 / 501

页数：7

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