Magnetic properties of the Mg2FeV3O11-x site-disordered vanadate

Guskos, N; Likodimos, V; Typek, J; Zolnierkiewicz, G; Szymczak, R; Blonska-Tabero, A

dc.contributor.author	Guskos, N	en
dc.contributor.author	Likodimos, V	en
dc.contributor.author	Typek, J	en
dc.contributor.author	Zolnierkiewicz, G	en
dc.contributor.author	Szymczak, R	en
dc.contributor.author	Blonska-Tabero, A	en
dc.date.accessioned	2014-03-01T01:24:35Z
dc.date.available	2014-03-01T01:24:35Z
dc.date.issued	2006	en
dc.identifier.issn	0022-3093	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17341
dc.subject	Magnetic properties	en
dc.subject.classification	Materials Science, Ceramics	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Antiferromagnetic coupling	en
dc.subject.other	Disordered vanadate	en
dc.subject.other	Energy scales	en
dc.subject.other	Antiferromagnetism	en
dc.subject.other	Diamagnetism	en
dc.subject.other	Magnesium compounds	en
dc.subject.other	Magnetization	en
dc.subject.other	Paramagnetic resonance	en
dc.subject.other	Thermal effects	en
dc.subject.other	Crystalline materials	en
dc.title	Magnetic properties of the Mg2FeV3O11-x site-disordered vanadate	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jnoncrysol.2006.07.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jnoncrysol.2006.07.009	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	The magnetic properties of the Mg2FeV3O11-x ternary vanadate, characterized by disorder between diamagnetic Mg2+ and high-spin Fe3+ ions, are studied using demagnetization and electron paramagnetic resonance (EPR). The dc susceptibility shows antiferromagnetic interactions between Fe3+ spins with a Curie-Weiss temperature of Theta = -50(1) K, followed by spin-glass-like freezing at T-f approximate to 2.8 K, suggesting significant spin frustration. Temperature-dependent EPR measurements confirm the antiferromagnetic coupling of Fe3+ spins at high temperatures, while a distinct divergence is observed at T approximate to 50 K. This behavior is associated with the formation of spin clusters providing two different energy scales for the magnetic interactions. The magnetic response Of Mg2FeV3O11-x is similar to that of the Zn-analogue compound, though the observed differences of the implicated energy scales indicate that magnetic inhomogeneity depends on the extent of cation disorder. Published by Elsevier B.V.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Non-Crystalline Solids	en
dc.identifier.doi	10.1016/j.jnoncrysol.2006.07.009	en
dc.identifier.isi	ISI:000241717600005	en
dc.identifier.volume	352	en
dc.identifier.issue	40-41 SPEC. ISS.	en
dc.identifier.spage	4179	en
dc.identifier.epage	4182	en