Magnetic properties of spinel-type oxides NiMn2-xMe xO4
New materials, based on the well-known spinel compound NiMn2O4, have been synthesized and characterized from the magnetic point of view. The manganese cation was partially substituted in the general formula NiMn2-xMe xO4 , by nonmagnetic and magnetic elements, such as Me = Ga, Zn, Ni and Cr (0 x 1)....
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| Lenguaje: | English |
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Sociedad Chilena de Química
2005
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oai:scielo:S0717-970720050003000162005-11-23Magnetic properties of spinel-type oxides NiMn2-xMe xO4PEÑA,O.MOURE,C.BODENEZ,V.CAILLEAUX,X.PIRIOU,B.ORTIZ,J.ZÚÑIGA,G.GAUTIER,J.L.LISBOA-FILHO,P.N. magnetic oxides spinels magnetic exchange ferrimagnetic properties New materials, based on the well-known spinel compound NiMn2O4, have been synthesized and characterized from the magnetic point of view. The manganese cation was partially substituted in the general formula NiMn2-xMe xO4 , by nonmagnetic and magnetic elements, such as Me = Ga, Zn, Ni and Cr (0 x 1). Prior to the determination of their magnetic properties, the non-substituted spinel NiMn2O4 was carefully characterized and studied as a function of the oxygen stoichiometry, based on the influence of the annealing atmosphere and quenching rate. The ferrimagnetic character was observed in all samples, with a paramagnetic-to-ferromagnetic transition temperature Tc stabilized at 110 K, and well defined long-range antiferromagnetic interactions at lower temperatures, which depend on the applied field and the substitute concentrationinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.50 n.3 20052005-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000300016en10.4067/S0717-97072005000300016 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
magnetic oxides spinels magnetic exchange ferrimagnetic properties |
| spellingShingle |
magnetic oxides spinels magnetic exchange ferrimagnetic properties PEÑA,O. MOURE,C. BODENEZ,V. CAILLEAUX,X. PIRIOU,B. ORTIZ,J. ZÚÑIGA,G. GAUTIER,J.L. LISBOA-FILHO,P.N. Magnetic properties of spinel-type oxides NiMn2-xMe xO4 |
| description |
New materials, based on the well-known spinel compound NiMn2O4, have been synthesized and characterized from the magnetic point of view. The manganese cation was partially substituted in the general formula NiMn2-xMe xO4 , by nonmagnetic and magnetic elements, such as Me = Ga, Zn, Ni and Cr (0 x 1). Prior to the determination of their magnetic properties, the non-substituted spinel NiMn2O4 was carefully characterized and studied as a function of the oxygen stoichiometry, based on the influence of the annealing atmosphere and quenching rate. The ferrimagnetic character was observed in all samples, with a paramagnetic-to-ferromagnetic transition temperature Tc stabilized at 110 K, and well defined long-range antiferromagnetic interactions at lower temperatures, which depend on the applied field and the substitute concentration |
| author |
PEÑA,O. MOURE,C. BODENEZ,V. CAILLEAUX,X. PIRIOU,B. ORTIZ,J. ZÚÑIGA,G. GAUTIER,J.L. LISBOA-FILHO,P.N. |
| author_facet |
PEÑA,O. MOURE,C. BODENEZ,V. CAILLEAUX,X. PIRIOU,B. ORTIZ,J. ZÚÑIGA,G. GAUTIER,J.L. LISBOA-FILHO,P.N. |
| author_sort |
PEÑA,O. |
| title |
Magnetic properties of spinel-type oxides NiMn2-xMe xO4 |
| title_short |
Magnetic properties of spinel-type oxides NiMn2-xMe xO4 |
| title_full |
Magnetic properties of spinel-type oxides NiMn2-xMe xO4 |
| title_fullStr |
Magnetic properties of spinel-type oxides NiMn2-xMe xO4 |
| title_full_unstemmed |
Magnetic properties of spinel-type oxides NiMn2-xMe xO4 |
| title_sort |
magnetic properties of spinel-type oxides nimn2-xme xo4 |
| publisher |
Sociedad Chilena de Química |
| publishDate |
2005 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000300016 |
| work_keys_str_mv |
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