IMPEDANCE SPECTROSCOPIC STUDIES IN SrBi5FeTi4O18

被引：16

作者：

James, A. R. ^{[1
]}

Kumar, G. S. ^{[1
]}

Suryanarayana, S. V. ^{[1
]}

Bhimasankaram, T. ^{[1
]}

机构：

[1] Osmania Univ, Dept Phys, Hyderabad 7, Andhra Pradesh, India

来源：

FERROELECTRICS | 1996年 / 189卷

关键词：

Auruvillius phases; ferroelectric; impedance spectroscopy; ac conductivity; poling;

D O I：

10.1080/00150199608213408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SrBi(5)FeTi(4)O(18) belongs to the family of bismuth layer structured ferroelectrics. The samples studied were prepared by the double sintering method. The impedance and dielectric measurements were performed in the temperature range from room temperature to 600 degrees C. From the impedance data, AC conductivity was computed both as a function of frequency, as well as temperature. Complex impedance diagrams are nearly semicircles in the high temperature and high frequency range. The impedance data below 500 degrees C indicated Debye type relaxations. The poled sample indicated a Curie temperature of 580 degrees C. The sample under consideration was found to be a weakly ferromagnetic material at room temperature with a coercive field of 7.08 X 10(2) G as evidenced by the B-H loop.

引用

页码：81 / 90

页数：10

共 15 条

[1]

Auruvillius B., 1949, ARKI KEMI, V1, P499

[2]

Auruvillius B., 1950, ARKI KEMI, V2, P519

[3]

Auruvillius B., 1959, ARKI KEMI, V1, P463

[4]

Da-ren Chen, 1986, IEEE, V86, P165

[5]

ISMAILZADE IG, 1967, SOV PHYS CRYSTALLOGR, V12, P400

[6] STUDIES ON ELECTRICAL-CONDUCTION IN BI4SRTI4O15 [J].

JAMES, AR ;

KUMAR, GS ;

BHIMASANKARAM, T ;

SURYANARAYANA, SV .

BULLETIN OF MATERIALS SCIENCE, 1994, 17 (06) :951-958

[7]

Jonscher A. K., 1980, PHYS THIN FILMS, V11, P205

[8] A NEW UNDERSTANDING OF THE DIELECTRIC-RELAXATION OF SOLIDS [J].

JONSCHER, AK .

JOURNAL OF MATERIALS SCIENCE, 1981, 16 (08) :2037-2060

[9]

Lines M. E., 1979, PRINCIPLES APPL FERR

[10]

Rao E. C. Subba, 1962, J PHYS CHEM SOLIDS, V23, P665

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