Response of magnetically frustrated nanostructures to external magnetic fields: Stepped Cr/Fe interfaces

DC FieldValueLanguage
dc.contributor.authorTan, H.
dc.contributor.authorMartinez, E.
dc.contributor.authorBorstel, G.
dc.contributor.authorVega, A.
dc.date.accessioned2021-12-23T16:08:51Z-
dc.date.available2021-12-23T16:08:51Z-
dc.date.issued2010
dc.identifier.issn10980121
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/8486-
dc.description.abstractThe response of typical magnetically frustrated systems to an external magnetic field is investigated in order to get insight on the qualitative trends and their origin at the electronic-structure level. Electronic-structure calculations are conducted for Cr overlayers of different thickness on the stepped Fe(001) substrate, using a self-consistent noncollinear tight-binding method in which the Hamiltonian has been extended to account for the interaction with the external field. The average magnetization at the Cr overlayers is obtained through the local magnetic moments distribution of the system at different external magnetic fields. The complex nonmonotonous behavior of the remagnetization process as a function of the external field is explained in terms of the local geometrical and chemical environment of the inequivalent Cr atoms which leads to local magnetic couplings having different response. In particular, we find minima at low fields due to the strength of the local antiferromagnetic couplings and changes in slope at higher fields associated to spin-flip transitions taking place at certain Cr atoms when the system is trapped in collinear magnetic configurations.
dc.description.sponsorshipBundesland Niedersachsen, Germany; Spanish Ministry of Science and InnovationSpanish Government [FIS2008-02490/FIS]; Junta de Castilla y LeonJunta de Castilla y Leon [GR120]; RFBRRussian Foundation for Basic Research (RFBR) [07-02-01065]; This work has been partially supported by the Ph.D. program ``Synthesis and Characterization of Surfaces and Interfaces assembled from Clusters and Molecules'' of the Bundesland Niedersachsen, Germany, the Spanish Ministry of Science and Innovation in conjunction with the European Regional Development fund (Project No. FIS2008-02490/FIS), by Junta de Castilla y Leon (Project No. GR120), and RFBR under Grant No. 07-02-01065. We thank Roberto Robles and Valery Uzdin for fruitful discussions.
dc.language.isoen
dc.publisherAMER PHYSICAL SOC
dc.relation.ispartofPHYSICAL REVIEW B
dc.subjectEXCHANGE
dc.subjectMAGNETORESISTANCE
dc.subjectMaterials Science
dc.subjectMaterials Science, Multidisciplinary
dc.subjectMULTILAYERS
dc.subjectPhysics
dc.subjectPhysics, Applied
dc.subjectPhysics, Condensed Matter
dc.subjectSPIN-DENSITY WAVES
dc.subjectSUPERLATTICES
dc.titleResponse of magnetically frustrated nanostructures to external magnetic fields: Stepped Cr/Fe interfaces
dc.typejournal article
dc.identifier.doi10.1103/PhysRevB.81.174426
dc.identifier.isiISI:000278141600084
dc.description.volume81
dc.description.issue17
dc.contributor.orcid0000-0002-8148-5702
dc.contributor.researcheridO-7902-2014
dc.contributor.researcheridD-5587-2016
dc.publisher.placeONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
dcterms.isPartOf.abbreviationPhys. Rev. B
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