Show simple item record

AuthorMadhuri, W.
AuthorKiran, S. Roopas
AuthorReddy, M. Penchal
AuthorReddy, N. Ramamanohar
AuthorKumar, K.V. Siva
Available date2021-02-08T09:14:52Z
Publication Date2017
Publication NameMaterials Science- Poland
ResourceScopus
URIhttp://dx.doi.org/10.1515/msp-2017-0003
URIhttp://hdl.handle.net/10576/17580
AbstractNonstoichiometric series of Mg0.5-xCuxZn0.5Fe1.9O4-? where x = 0.0, 0.1, 0.15, 0.2 and 0.25 has been synthesized by conventional solid state reaction route. The single phase spinel structure of the double sintered ferrites was confirmed by X-ray diffraction patterns (XRD). The ferrite series was studied in terms of DC electrical conductivity and thermoelectric power in the temperature ranging from room temperature to 300 C and 400 C, respectively. It was observed that DC electrical conductivity and Seebeck coefficient ? decreased with the increase in x. DC electrical conductivity was found to decrease by about 4 orders. All the compositions showed a negative Seebeck coefficient exhibiting n-type semiconducting nature. From the above experimental results, activation energy and mobility of all the samples were estimated. Small polaron hopping conduction mechanism was suggested for the series of ferrites. Owing to their low conductivity the nonstoichiometric MgCuZn ferrites are the best materials for transformer core and high definition television deflection yokes.
Languageen
PublisherWalter de Gruyter GmbH
Subjectconduction mechanism
ferrites
mobility
Seebeck coefficient
TitleDC conductivity and Seebeck coefficient of nonstoichiometric MgCuZn ferrites
TypeArticle
Pagination40-44
Issue Number1
Volume Number35


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record