Local canted spin behaviour in Co1.4−xZnxGe0.4Fe1.2O4 spinels: A macroscopic, mesoscopic and microscopic study

DC magnetization, neutron depolarization and neutron diffraction (with both polarized and unpolarized neutrons) measurements have been reported for the Co1.1−xZnxGe0.1Fe1.2O1 spinels with x=0.5, 0.6 and 0.7. Neutron depolarization and neutron diffraction measurements confirm the presence of a long r...

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Bibliographic Details
Published inPramāṇa Vol. 53; no. 2; pp. 341 - 351
Main Authors Subbarao, M V, Yusuf, S M, Kulkarni, R G, Madhav, Rao L
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.01.1999
Subjects
Cobalt
Depolarization
Domain walls
Ferrites
Filing
Magnetic anisotropy
Magnetization
Neutron diffraction
Spinel
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Summary:DC magnetization, neutron depolarization and neutron diffraction (with both polarized and unpolarized neutrons) measurements have been reported for the Co1.1−xZnxGe0.1Fe1.2O1 spinels with x=0.5, 0.6 and 0.7. Neutron depolarization and neutron diffraction measurements confirm the presence of a long range ferrimagnetic ordering of the local canted spins in these ferrite samples. The observed features of low field magnetization have been explained under the framework of thermally activated domain wall movement of ferrimagnetic arrangement of local canted spins. An important role of magnetic anisotropy (due to the presence of Co2+ ions) in establishing the magnetic ordering and domain kinetics in these ferrites has been observed.
ISSN:0304-4289
0973-7111
DOI:10.1007/s12043-999-0133-5