X-ray photoelectron spectroscopy and magnetism of Mn(1-x)Al(x)Ni(3) alloys

DC FieldValueLanguage
dc.contributor.authorRednic, Vasile
dc.contributor.authorRednic, Lidia
dc.contributor.authorColdea, Marin
dc.contributor.authorPop, Viorel
dc.contributor.authorNeumann, Manfred
dc.contributor.authorPacurariu, Roxana
dc.contributor.authorTunyagi, Arthur R.
dc.date.accessioned2021-12-23T16:11:58Z-
dc.date.available2021-12-23T16:11:58Z-
dc.date.issued2008
dc.identifier.issn18951082
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/9979-
dc.description.abstractX-ray photoelectron spectroscopy (XPS), magnetization and magnetic susceptibility of Mn(1-x) Al (x)Ni(3) (x = 0.0, 0.2, 0.4, 0.5, 0.6, 0.7) alloys are reported. X-ray diffraction measurements showed that all investigated samples have the same crystallographic structure as the parent compound (AuCu(3)-structure type). The alloys are disordered for x <= 0.5, but become almost crystallographically ordered for higher Al concentration. This change in the crystallographic order is reflected both in the magnetization and Curie temperature values. The exchange interaction is ferromagnetic between the pairs of the near-neighbour Mn-Ni and Ni-Ni magnetic moments and antiferromagnetic for Mn-Mn pairs. The last one is present only in the disordered alloys, which leads to smaller values of the magnetization of these alloys in comparison with the ordered ones. The Mn magnetic moment has the fully ordered value of 3.2 mu B in all investigated alloys. The decrease of the Ni magnetic moment as the Al concentration increases may be explained by the hybridization of the Ni 3d and Al 3sp states, which leads to a partial filling of the Ni 3d band. The magnetic susceptibility measurements pointed out the existence of spin fluctuations on Ni sites.
dc.language.isoen
dc.publisherVERSITA
dc.relation.ispartofCENTRAL EUROPEAN JOURNAL OF PHYSICS
dc.subjectFE
dc.subjectlocal moments
dc.subjectmagnetic measurements
dc.subjectMOMENT
dc.subjectPhysics
dc.subjectPhysics, Multidisciplinary
dc.subjectspin fluctuations
dc.subjecttransition metal alloys and compounds
dc.subjectXPS spectra
dc.titleX-ray photoelectron spectroscopy and magnetism of Mn(1-x)Al(x)Ni(3) alloys
dc.typejournal article
dc.identifier.doi10.2478/s11534-008-0093-2
dc.identifier.isiISI:000257770700007
dc.description.volume6
dc.description.issue3
dc.description.startpage434
dc.description.endpage439
dc.contributor.orcid0000-0002-7998-7754
dc.contributor.orcid0000-0002-7998-7754
dc.contributor.orcid0000-0001-5125-4412
dc.contributor.researcheridR-8552-2016
dc.contributor.researcheridABC-7589-2021
dc.contributor.researcheridC-2900-2012
dc.contributor.researcheridC-3867-2012
dc.contributor.researcheridX-2146-2019
dc.contributor.researcheridC-4776-2011
dc.publisher.placeSOLIPSKA 14A-1, 02-482 WARSAW, POLAND
dcterms.isPartOf.abbreviationCent. Eur. J. Phys.
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