Annihilation of antiferromagnetic order in LiCoO<sub>2</sub> by excess Li
hal.structure.identifier | Central Research and Development Laboratory | |
dc.contributor.author | SUGIYAMA, Jun | |
hal.structure.identifier | Central Research and Development Laboratory | |
dc.contributor.author | IKEDO, Yutaka | |
hal.structure.identifier | Central Research and Development Laboratory | |
dc.contributor.author | NOZAKI, Hiroshi | |
hal.structure.identifier | Central Research and Development Laboratory | |
dc.contributor.author | MUKAI, Kazuhiko | |
hal.structure.identifier | Faculty of Physics | |
dc.contributor.author | ANDREICA, Daniel | |
hal.structure.identifier | Paul Scherrer Institute [PSI] | |
dc.contributor.author | AMATO, Alex | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | MÉNÉTRIER, Michel | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CARLIER-LARREGARAY, Dany | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | DELMAS, Claude | |
dc.date.issued | 2009 | |
dc.identifier.issn | 0921-4526 | |
dc.description.abstractEn | In order to elucidate the origin of antiferromagnetic (AF) order below 30 K in LiCoO2, in which all the Co3+ ions are in a low-spin state with S=0, the magnetic nature of the Li-excess sample Li1.04Co0.96O1.96 was studied by muon-spin spectroscopy in the temperature range between 1.8 and 100 K. Although disordered localized moments appeared below 25 K, static AF order was not detected even at 1.8 K. Moreover, a small amount of excess Li ions (4%) and oxygen vacancies (2%) was found to change not, vert, similar50% of the sample into a magnetically disordered phase at 1.8 K. The stoichiometric LiCoO2, which was prepared from the same starting materials to those for the Li-excess sample, showed an AF transition at 30 K, while the volume fraction of the AF phase was 10% even at 1.8 K. This therefore excludes the possible role of the excess Li+ on the formation of static AF order. | |
dc.language.iso | en | |
dc.publisher | Elsevier | |
dc.title.en | Annihilation of antiferromagnetic order in LiCoO<sub>2</sub> by excess Li | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1016/j.physb.2008.11.177 | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Physica B: Condensed Matter | |
bordeaux.page | 769-772 | |
bordeaux.volume | 404 | |
bordeaux.issue | 5-7 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00377760 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
dc.subject.it | Antiferromagnetic order | |
dc.subject.it | LiCoO<sub>2</sub> | |
dc.subject.it | Triangular lattice | |
dc.subject.it | Oxygen vacancies | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00377760v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physica%20B:%20Condensed%20Matter&rft.date=2009&rft.volume=404&rft.issue=5-7&rft.spage=769-772&rft.epage=769-772&rft.eissn=0921-4526&rft.issn=0921-4526&rft.au=SUGIYAMA,%20Jun&IKEDO,%20Yutaka&NOZAKI,%20Hiroshi&MUKAI,%20Kazuhiko&ANDREICA,%20Daniel&rft.genre=article |
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