Numéro
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
Page(s) C1-279 - C1-280
DOI http://dx.doi.org/10.1051/jp4:19971110
7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-279-C1-280

DOI: 10.1051/jp4:19971110

Magnetic Properties of the Spinel SnCo2O4

V. Sagredo1, B. Watts2 and B. Wanklyn3

1  Physics Department, Universidad de los Andes, Mérida, Venezuela
2  MASPEC/CNR Institute, Vía Chiavari 18/A, Parma, Italy
3  Clarendon Laboratory, Oxford University, Oxford, U.K.


Abstract
The compound SnCo2O4 is an inverted IV-II spinel with the Co ions equally distributed among the octahedral and tetrahedral sites. The Sn ions occupy the remaining octahedral sites. This compound was previously thought to order as a Nèel p-type ferrimagnet with the residual magnetization of 1 x 10-2 µB per Co2+ ion. This paper extends the magnetic measurements to ZFC and FC data at low temperatures and low applied magnetic field. Magnetic measurements on the SnCo2O4 single crystals gown by the flux method suggest a re-entrant ferrimagnetic behaviour at low temperature. Suggestions are made for the origin of canting.



© EDP Sciences 1997