dc.contributor.author |
Escamilla, R |
|
dc.contributor.author |
Duran, A |
|
dc.contributor.author |
Rosales, MI |
|
dc.contributor.author |
Moran, E |
|
dc.contributor.author |
Alario-Franco, MA |
|
dc.date.accessioned |
2011-01-22T10:26:46Z |
|
dc.date.available |
2011-01-22T10:26:46Z |
|
dc.date.issued |
2003 |
|
dc.identifier.issn |
0953-8984 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/1694 |
|
dc.description.abstract |
The effects of Mn substitution on the structure and magnetic properties of the SeMO3 (M = Cu1-xMnx) solid solution have been studied. Rietveld refinements of the x-ray diffraction patterns of these samples indicate that the manganese ions occupy copper sites. This replacement induces significant changes in the M-O bond lengths that give rise to abrupt decreases of the [M-O-6] octahedral distortion. In contrast, the M-O(1)-M and M-O(2)-M bond angles remain essentially constant. The magnetic behaviour of this solid solution was studied in the temperature range of 2 K < T < 300 K. The temperature dependence of the inverse magnetic susceptibility is well described by the Curie-Weiss law at high temperatures, in the composition range studied. We found that the substitution of Mn for Cu induces a sharp drop in the saturation moment of SeCuO3. At about 10% of Mn there is a change from positive to negative Weiss constant theta(W) that is mainly due to the [M-O-6] octahedral distortion introduced by the substitution of the larger Mn ions in the structure. The M-H isotherms show a weak ferromagnetism at about 52 K in SeMnO3. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
The effect of Mn substitution on the structure and magnetic properties of Se(Cu1-xMnx)O-3 solid solution |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
1965 |
|
dc.source.novolpages |
15(12):1951-1961 |
|
dc.subject.wos |
Physics, Condensed Matter |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.relation.journal |
Journal of Physics-Condensed Matter |
|