Synthesis and characterisation of the CaFexAlx(CuTi)6-xO19 hexaferrite system

A new series of Cu-Ti substituted M-type hexagonal ferrites with composition CaFexAlx(CuTi)6-xO19 (x = 0, 1, 3, 5) was synthesised by a ceramic technique. The XRD patterns showed single M-phase. The Seebeck coefficient studies were carried out so that the conductivity of these ferrites could be disc...

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Veröffentlicht in:	Materials letters 1996-10, Vol.28 (4-6), p.365-368
Hauptverfasser:	REWATKAR, K. G, PRAKASH, G. S, KULKARNI, D. K
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Conductivity phenomena in semiconductors and insulators Electronic transport in condensed matter Exact sciences and technology Inorganic compounds Low-field transport and mobility piezoresistance Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Physics Saturation moments and magnetic susceptibilities Structure of solids and liquids crystallography Structure of specific crystalline solids Thermoelectric and thermomagnetic effects Water, oxides, hydroxides, peroxides
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Beschreibung
Zusammenfassung:	A new series of Cu-Ti substituted M-type hexagonal ferrites with composition CaFexAlx(CuTi)6-xO19 (x = 0, 1, 3, 5) was synthesised by a ceramic technique. The XRD patterns showed single M-phase. The Seebeck coefficient studies were carried out so that the conductivity of these ferrites could be discussed. The magnetic and electrical properties were studied in a temperature range from 300 to 800 K. The conductivity is explained on the basis of the Verwey model. 19 refs.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/0167-577X(96)00087-0