STRUCTURAL, SPECTROSCOPIC AND DIELECTRIC-PROPERTIES OF KVO3

被引：2

作者：

MISRA, NK ^{[1
]}

CHOUDHARY, RNP ^{[1
]}

YADAV, KL ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT PHYS,KHARAGPUR 721302,W BENGAL,INDIA

来源：

PRAMANA-JOURNAL OF PHYSICS | 1995年 / 44卷 / 03期

关键词：

X-RAY DIFFRACTION ANALYSIS; RAMAN AND IR SPECTRA; DIELECTRIC CONSTANT; FERROELECTRIC PHASE TRANSITION;

D O I：

10.1007/BF02848473

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Polycrystalline samples of KVO3, a member of the pyroxene structural family have been synthesised with high-temperature solid-state reaction technique. Preliminary structural and spectroscopic and detailed dielectric properties have been studied in different conditions. NO dielectric anomaly or hysteresis loop has been observed in a wide temperature range (30 degrees C to 450 degrees C). Basic structural and spectroscopic (IR and Raman) studies suggest that at room temperature, KVO3 is centrosymmetric as reported earlier. This and other observations do not support the recent report of ferroelectric phase transition in the compound.

引用

页码：219 / 224

页数：6

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