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Magnetic and magnetocaloric properties of the high-temperature modification of TbTiGe

hal.structure.identifierMatériaux, Rayonnements, Structure [NEEL - MRS]
dc.contributor.authorTENCÉ, Sophie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDIN, Etienne
hal.structure.identifierMatériaux, Rayonnements, Structure [NEEL - MRS]
dc.contributor.authorISNARD, Olivier
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHEVALIER, Bernard
dc.date.issued2012
dc.identifier.issn0953-8984
dc.description.abstractEnThe high-temperature form (HT) of the ternary germanide TbTiGe was prepared by melting. The investigation of HT-TbTiGe by x-ray and neutron powder diffractions shows that the compound crystallizes in the tetragonal CeScSi-type structure (space group I4/mmm; a = 404.84(5) and c = 1530.10(9) pm as unit cell parameters). Magnetization and specific heat measurements as well as neutron powder diffraction performed on HT-TbTiGe reveal a ferromagnet having TC = 300(1) K as the Curie temperature; the Tb-moments are aligned along the c-axis. This magnetic ordering is associated with a modest magnetocaloric effect around room temperature. The isothermal magnetic entropy change ΔSm was determined from the magnetization data; ΔSm reaches, respectively, a maximum value of − 4.3 and − 2.0 J K−1 kg−1 for a magnetic field change of 5 and 2 T.
dc.language.isoen
dc.publisherIOP Publishing
dc.subject.enMagnetism
dc.subject.enHigh pressure
dc.subject.enTitanium
dc.subject.enGermanium
dc.subject.enTerbium
dc.title.enMagnetic and magnetocaloric properties of the high-temperature modification of TbTiGe
dc.typeArticle de revue
dc.identifier.doi10.1088/0953-8984/24/29/296002
dc.subject.halChimie/Matériaux
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
bordeaux.journalJournal of Physics: Condensed Matter
bordeaux.page296002
bordeaux.volume24
bordeaux.issue29
bordeaux.peerReviewedoui
hal.identifierhal-00712605
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00712605v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physics:%20Condensed%20Matter&rft.date=2012&rft.volume=24&rft.issue=29&rft.spage=296002&rft.epage=296002&rft.eissn=0953-8984&rft.issn=0953-8984&rft.au=TENC%C3%89,%20Sophie&GAUDIN,%20Etienne&ISNARD,%20Olivier&CHEVALIER,%20Bernard&rft.genre=article


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