dc.date.accessioned | 2015-03-19T15:36:08Z | |
dc.date.available | 2016-03-18T23:30:53Z | |
dc.date.created | 2015-02-24T17:15:02Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Nagell, Marius Uv Kumar, Susmit Sørby, Magnus Helgerud Fjellvåg, Helmer Sjåstad, Anja Olafsen . Structural and magnetic aspects of La4(Co1-xNix)3O10+δ (0 ≤ x ≤ 1). Phase Transitions. 2015 | |
dc.identifier.uri | http://hdl.handle.net/10852/43318 | |
dc.description.abstract | The Ruddlesden–Popper (RP3) type oxides, La4Co3O10+δ and La4Ni3O10+δ, form a complete solid solution. Powder X-ray and neutron diffraction data show that La4(Co1−xNix)3O10+δ is isostructural to the monoclinic La4Co3O10+δ structure (P21/a) described for all compositions without any further structural distortions as suggested in the literature. A slight elongation of the Co/Ni–O bonds facing the rock salt interlayer occurs for Ni-rich compositions. The magnetic properties of the solid solution series are mapped in the temperature range from 4 to 300 K, and the results are presented in a magnetic phase diagram. Three regimes with antiferromagnetic order (AF) exist at low temperatures, TN < 10 − 30 K. For x = 0.00, the AF is ascribed to Co(II), whereas a broader AF regime around x = 0.50 is ascribed mainly to Ni(II). Pauli paramagnetism is observed close to metallic La4Ni3O10+δ, x > 0.80. The possibility to tune the oxidation state of the transition metal atoms is demonstrated for La4Co3O10+δ, and exemplified by weakening of a temperature-induced spin transition at around 480 K.
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Phase Transitions: A Multinational Journal, available online: http://www.tandfonline.com | |
dc.language | EN | |
dc.language.iso | en | en_US |
dc.title | Structural and magnetic aspects of La4(Co1-xNix)3O10+δ (0 ≤ x ≤ 1) | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Nagell, Marius Uv | |
dc.creator.author | Kumar, Susmit | |
dc.creator.author | Sørby, Magnus Helgerud | |
dc.creator.author | Fjellvåg, Helmer | |
dc.creator.author | Sjåstad, Anja Olafsen | |
cristin.unitcode | 185,15,0,0 | |
cristin.unitname | Det matematisk-naturvitenskapelige fakultet | |
cristin.ispublished | false | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1226302 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Phase Transitions&rft.volume=&rft.spage=&rft.date=2015 | |
dc.identifier.jtitle | Phase Transitions | |
dc.identifier.doi | http://dx.doi.org/10.1080/01411594.2015.1007374 | |
dc.identifier.urn | URN:NBN:no-47675 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0141-1594 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/43318/4/Structural%2Band%2Bmagnetic%2Baspects_for%2Bopen%2Baccess_22122014.pdf | |
dc.type.version | AcceptedVersion | |