Please use this identifier to cite or link to this item: https://doi.org/10.1021/jacs.6b02638
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dc.titleA Stable Pentagonal Bipyramidal Dy(III) Single-Ion Magnet with a Record Magnetization Reversal Barrier over 1000 K
dc.contributor.authorLiu, Jiang
dc.contributor.authorChen, Yan-Cong
dc.contributor.authorLiu, Jun-Liang
dc.contributor.authorVieru, Veacheslav
dc.contributor.authorUngur, Liviu
dc.contributor.authorJia, Jian-Hua
dc.contributor.authorChibotaru, Liviu F
dc.contributor.authorLan, Yanhua
dc.contributor.authorWernsdorfer, Wolfgang
dc.contributor.authorGao, Song
dc.contributor.authorChen, Xiao-Ming
dc.contributor.authorTong, Ming-Liang
dc.date.accessioned2022-07-18T14:51:04Z
dc.date.available2022-07-18T14:51:04Z
dc.date.issued2016-04-27
dc.identifier.citationLiu, Jiang, Chen, Yan-Cong, Liu, Jun-Liang, Vieru, Veacheslav, Ungur, Liviu, Jia, Jian-Hua, Chibotaru, Liviu F, Lan, Yanhua, Wernsdorfer, Wolfgang, Gao, Song, Chen, Xiao-Ming, Tong, Ming-Liang (2016-04-27). A Stable Pentagonal Bipyramidal Dy(III) Single-Ion Magnet with a Record Magnetization Reversal Barrier over 1000 K. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 138 (16) : 5441-5450. ScholarBank@NUS Repository. https://doi.org/10.1021/jacs.6b02638
dc.identifier.issn0002-7863
dc.identifier.issn1520-5126
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/228793
dc.description.abstractSingle-molecule magnets (SMMs) with a large spin reversal barrier have been recognized to exhibit slow magnetic relaxation that can lead to a magnetic hysteresis loop. Synthesis of highly stable SMMs with both large energy barriers and significantly slow relaxation times is challenging. Here, we report two highly stable and neutral Dy(III) classical coordination compounds with pentagonal bipyramidal local geometry that exhibit SMM behavior. Weak intermolecular interactions in the undiluted single crystals are first observed for mononuclear lanthanide SMMs by micro-SQUID measurements. The investigation of magnetic relaxation reveals the thermally activated quantum tunneling of magnetization through the third excited Kramers doublet, owing to the increased axial magnetic anisotropy and weaker transverse magnetic anisotropy. As a result, pronounced magnetic hysteresis loops up to 14 K are observed, and the effective energy barrier (Ueff = 1025 K) for relaxation of magnetization reached a breakthrough among the SMMs.
dc.language.isoen
dc.publisherAMER CHEMICAL SOC
dc.sourceElements
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectChemistry, Multidisciplinary
dc.subjectChemistry
dc.subjectSPIN-LATTICE-RELAXATION
dc.subjectMOLECULE MAGNETS
dc.subjectLANTHANIDE COMPLEXES
dc.subjectANISOTROPY BARRIER
dc.subjectSYMMETRY
dc.subjectBLOCKING
dc.subjectEXCHANGE
dc.subjectBEHAVIOR
dc.typeArticle
dc.date.updated2022-07-15T02:41:51Z
dc.contributor.departmentDEPT OF CHEMISTRY
dc.description.doi10.1021/jacs.6b02638
dc.description.sourcetitleJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
dc.description.volume138
dc.description.issue16
dc.description.page5441-5450
dc.published.statePublished
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