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On the magnetic properties of pseudo-Laves phases RE1-yYyNi4-xAlxMg with RE = La, Ce and Gd prepared by both melting and ball milling

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCOUILLAUD, Samuel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHEVALIER, Bernard
hal.structure.identifierInstitut de Chimie et des Matériaux Paris-Est [ICMPE]
dc.contributor.authorPAUL-BONCOUR, Valérie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBOBET, Jean-Louis
dc.date.issued2012
dc.identifier.issn0925-8388
dc.description.abstractEnMagneticproperties of RE1−yYyNi4−xAlxMg (RE = La, Ce and Gd) are reported. LaNi4Mg displays a weak magnetization indicating that Ni is non magnetic as often observed in RENi2 compounds. The magnetization of CeNi4Mg compounds shows a Curie Weiss behaviour with an effective paramagnetic moment μeff = 2.2 μB. The magnetization of Gd compounds is dominated by the contribution of Gd moment with a paramagnetic effective moment close to 7.7 μB/Gd for all studied compounds. The Curie temperature, which is 75 K for GdNi2, decreases almost linearly with the number of Gd neighbours when more than half Gd is replaced by Y. The decrease of crystallinity of GdNi4Mg, which is monitored by ball milling and heat treatment, strongly influences the magneticproperties and a relationship between the transition temperature and the crystallites size is reported.
dc.language.isoen
dc.publisherElsevier
dc.subjectSolid solution
dc.subjectMagneticproperties
dc.subjectStructural properties
dc.title.enOn the magnetic properties of pseudo-Laves phases RE1-yYyNi4-xAlxMg with RE = La, Ce and Gd prepared by both melting and ball milling
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jallcom.2012.02.054
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Alloys and Compounds
bordeaux.page166-171
bordeaux.volume525
bordeaux.peerReviewedoui
hal.identifierhal-00688042
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00688042v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Alloys%20and%20Compounds&rft.date=2012&rft.volume=525&rft.spage=166-171&rft.epage=166-171&rft.eissn=0925-8388&rft.issn=0925-8388&rft.au=COUILLAUD,%20Samuel&CHEVALIER,%20Bernard&PAUL-BONCOUR,%20Val%C3%A9rie&BOBET,%20Jean-Louis&rft.genre=article


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