Experimental determination of exchange constants in antiferromagnetic Mn2Au

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dc.contributor.authorSapozhnik, Alexey A.
dc.contributor.authorLuo, C.
dc.contributor.authorRyll, H.
dc.contributor.authorRadu, Florin
dc.contributor.authorJourdan, Martin
dc.contributor.authorZabel, Hartmut
dc.contributor.authorElmers, Hans-Joachim
dc.date.accessioned2019-08-26T14:00:17Z
dc.date.available2019-08-26T16:00:17Z
dc.date.issued2018
dc.description.abstractMn2Au is an important antiferromagnetic (AF) material for spintronics applications. Due to its very high Néel temperature of about 1500 K, some of the basic properties are difficult to explore, such as the AF susceptibility and the exchange constants. Experimental determination of these parameters is further hampered in thin films by the unavoidable presence of uncompensated and quasiloose spins on antisites and at interfaces. Using x-ray magnetic circular dichroism (XMCD), we measured induced perpendicular spin and orbital moments for a Mn2Au(001) film in fields up to ±8 T. By performing these measurements at a low temperature of 7 K and at room temperature (RT), we were able to separate the loose spin contribution from the susceptibility of AF coupled spins. The value of the AF exchange constant obtained with this method for a 10-nm-thick Mn2Au(001) film is (22±5)meV.en_GB
dc.identifier.doihttp://doi.org/10.25358/openscience-109
dc.identifier.urihttps://openscience.ub.uni-mainz.de/handle/20.500.12030/111
dc.identifier.urnurn:nbn:de:hebis:77-publ-592144
dc.language.isoeng
dc.rightsInC-1.0de_DE
dc.rights.urihttps://rightsstatements.org/vocab/InC/1.0/
dc.subject.ddc530 Physikde_DE
dc.subject.ddc530 Physicsen_GB
dc.titleExperimental determination of exchange constants in antiferromagnetic Mn2Auen_GB
dc.typeZeitschriftenaufsatzde_DE
jgu.journal.issue18
jgu.journal.titlePhysical review : B
jgu.journal.volume97
jgu.organisation.departmentFB 08 Physik, Mathematik u. Informatik
jgu.organisation.nameJohannes Gutenberg-Universität Mainz
jgu.organisation.number7940
jgu.organisation.placeMainz
jgu.organisation.rorhttps://ror.org/023b0x485
jgu.pages.alternativeArt. 184416
jgu.publisher.doi10.1103/PhysRevB.97.184416
jgu.publisher.issn2469-9969
jgu.publisher.issn1095-3795
jgu.publisher.nameAPS
jgu.publisher.placeCollege Park, Md.
jgu.publisher.urihttp://dx.doi.org/10.1103/PhysRevB.97.184416
jgu.publisher.year2018
jgu.rights.accessrightsopenAccess
jgu.subject.ddccode530
jgu.type.dinitypeArticle
jgu.type.resourceText
jgu.type.versionAccepted versionen_GB
opus.affiliatedJourdan, Martin
opus.affiliatedZabel, Hartmut
opus.affiliatedElmers, Hans-Joachim
opus.date.accessioned2019-08-26T14:00:17Z
opus.date.available2019-08-26T16:00:17
opus.date.modified2019-09-16T07:57:58Z
opus.identifier.opusid59214
opus.institute.number0801
opus.metadataonlyfalse
opus.organisation.stringFB 08: Physik, Mathematik und Informatik: Institut für Physikde_DE
opus.subject.dfgcode00-000
opus.type.contenttypeForschungsberichtde_DE
opus.type.contenttypeResearch Reporten_GB

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