Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/22106
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dc.contributor.authorObradors, Xaviercat
dc.contributor.authorMartínez Perea, Benjamincat
dc.contributor.authorBatlle Gelabert, Xaviercat
dc.contributor.authorRodríguez Carvajal, Juancat
dc.contributor.authorFernández-Diaz, M. T.cat
dc.contributor.authorMartínez, J. L.cat
dc.contributor.authorOdier, P.cat
dc.date.accessioned2012-02-16T08:49:44Z-
dc.date.available2012-02-16T08:49:44Z-
dc.date.issued1991-
dc.identifier.issn0021-8979-
dc.identifier.urihttp://hdl.handle.net/2445/22106-
dc.description.abstractThe magnetic properties of a stoichiometric Pr2NiO4 single crystal have been examined by means of the temperature dependence of the complex ac susceptibility and the isothermal magnetization in fields up to 200 kOe at T=4.2 K. Three separate phases have been identified and their anisotropic character has been analyzed. A collinear antiferromagnetic phase appears first between TN = 325 K and Tc1 = 115 K, where the Pr ions are polarized by an internal magnetic field. At Tc1 a first modification of the magnetic structure occurs in parallel with a structural phase transition (Bmab to P42/ncm). This magnetic transition has a first‐order character and involves both the out‐of‐plane and the in‐plane spin components (magnetic modes gx and gxcyfz, respectively). A second magnetic transition having also a first‐order character is also clearly identified at Tc2 = 90 K which corresponds to a spin reorientation process (gxcyfz to cxgyaz magnetic modes). It should be noted as well that the out‐of‐phase component of χac shows a peak around 30 K which reflects the coexistence of both magnetic configurations in a wide temperature interval. Finally, two field‐induced transitions have been observed at 4.2 K when the field is directed along the c axis. We propose that the high‐field anomaly arises from a metamagnetic transition of the weak ferromagnetic component, similarly to La2CuO4.-
dc.format.extent3 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoengeng
dc.publisherAmerican Institute of Physics-
dc.relation.isformatofReproducció del document publicat a: http://dx.doi.org/10.1063/1.349958-
dc.relation.ispartofJournal of Applied Physics, 1991, vol. 70, núm. 10, p. 6329-6331-
dc.relation.urihttp://dx.doi.org/10.1063/1.349958-
dc.rights(c) American Institute of Physics, 1991-
dc.sourceArticles publicats en revistes (Física de la Matèria Condensada)-
dc.subject.classificationPropietats magnètiquescat
dc.subject.classificationAnisotropiacat
dc.subject.classificationFerromagnetismecat
dc.subject.classificationSpin (Física nuclear)cat
dc.subject.classificationCristal·lografiacat
dc.subject.classificationMatèria condensadacat
dc.subject.otherMagnetic propertieseng
dc.subject.otherAnisotropyeng
dc.subject.otherFerromagnetismeng
dc.subject.otherNuclear spineng
dc.subject.otherCristallographyeng
dc.subject.otherCondensed mattereng
dc.titleMagnetic transitions in Pr2NiO4 single crystaleng
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec82542-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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