The influence of spin-reorientation on the dielectric behaviour of cobalt substituted W-type barium-zinc hexagonal ferrites

被引：5

作者：

Reddy, VD ^{[1
]}

Purushotham, Y ^{[1
]}

Reddy, MB ^{[1
]}

Reddy, PV ^{[1
]}

机构：

[1] OSMANIA UNIV,DEPT PHYS,HYDERABAD 500007,ANDHRA PRADESH,INDIA

来源：

MODERN PHYSICS LETTERS B | 1996年 / 10卷 / 29期

关键词：

D O I：

10.1142/S0217984996001656

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Dielectric measurements of cobalt substituted W-type barium-zinc hexagonal ferrites are undertaken both as a function of frequency and temperature. The dielectric constant is found to decrease continuously with increasing frequency while it increases continuously with increasing temperature. The variation of dielectric constant with dopants concentration is explained on the basis of magnetic cation orientation. From the temperature variation of dielectric constant two transitions, one due to the spin reorientation in the temperature range 450-500 K and the other one due to a ferri to paramagnetic transition have been observed. Suitable explanations for the observed behavior are given.

引用

页码：1461 / 1470

页数：10

共 19 条

[1] DIELECTRIC BEHAVIOR IN CO-ZN FERRITES [J].

AHMED, MA ;

ELNIMR, MK ;

TAWFIK, A ;

ABOELATA, AM .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1989, 114 (01) :377-380

[2] MOSSBAUER INVESTIGATION OF W-TYPE HEXAFERRITE OF COMPOSITION BAZN2-XCOXFE16O27 [J].

ALBANESE, G ;

CALABRESE, E ;

DERIU, A .

HYPERFINE INTERACTIONS, 1986, 28 (1-4) :487-489

[3] 1ST ORDER MAGNETIZATION PROCESSES IN UNIAXIAL CRYSTALS - (ZN,CO)2BAFE16O27 [J].

ASTI, G ;

BOLZONI, F ;

LICCI, F ;

CANALI, M .

IEEE TRANSACTIONS ON MAGNETICS, 1978, 14 (05) :883-885

[4]

BRAUN PB, 1957, PHILIPS RES REP, V0012

[5] EASY-AXIS REORIENTATION IN THE BACO2-W HEXAGONAL FERRITE [J].

COLLOMB, A ;

SAMARAS, D ;

HADJIVASILIOU, S ;

ACHILLEOS, C ;

TSOUKALAS, J ;

PANNETIER, J ;

RODRIGUEZ, J .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (10) :5983-5985

[6]

Gorbach V. N., 1975, Soviet Physics - Solid State, V17

[7]

Gorter E., 1957, Proc. IEEE B, V104, P225

[8] CRYSTALLOGRAPHIC AND MAGNETIC INVESTIGATION ON W-TYPE-HEXAFERRITE SINGLE-CRYSTALS IN THE SOLID-SOLUTION SERIES SRZN2-XCOXFE16O27 [J].

GRAETSCH, H ;

HABEREY, F ;

LECKEBUSCH, R ;

ROSENBERG, MS ;

SAHL, K .

IEEE TRANSACTIONS ON MAGNETICS, 1984, 20 (03) :495-500

[9]

Kuntsevich S. P., 1978, Soviet Physics - Solid State, V20, P1661

[10]

Lotgering FK, 1961, PHILIPS RES REP, V16, P441

← 1 2 →