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Detailed magnetic studies on Co(N-3)(2)(4-acetylpyridine)(2): a weak-ferromagnet with a very big canting angle
Wang, Xin-Yi; Wang, Zhe-Ming; Gao, Song
2008-07-07
Source PublicationINORGANIC CHEMISTRY
ISSN0020-1669
Volume47Issue:13Pages:5720-5726
AbstractThe magnetic properties of Co(N-3)(2)(4acpy)(2) have been thoroughly reexamined on both powder and well-oriented single crystal samples. This azido-bridged cobalt compound of (4, 4) layer shows a weak-ferromagnetic state below T-C = 11.2 K. The magnetic axes were determined to be along the crystallographic a*, b, and c axes for the monoclinic space group P2(1)/c. The easy axis lies along the b-axis, the canting is along the a*-axis, and the hard axis is along the c-axis. Strong anisotropy due to the oriented moments in the ordered state and/or the single-ion anisotropy of Co2+ exists in the whole temperature range from 2 to 300 K. Below T-C, very big spontaneous magnetization was observed and was attributed to the very big canting angle (150 at 2 K). A possible spin configuration was then proposed to explain the experimental results. The origin of the big spin canting was discussed, and a weak-ferromagnetic approach toward molecular magnets with big spontaneous magnetization was proposed accordingly.
DOI10.1021/ic7023549
Indexed BySCI
Language英语
WOS IDWOS:000257278000034
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:82[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63342
Collection中国科学院化学研究所
Corresponding AuthorGao, Song
AffiliationPeking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xin-Yi,Wang, Zhe-Ming,Gao, Song. Detailed magnetic studies on Co(N-3)(2)(4-acetylpyridine)(2): a weak-ferromagnet with a very big canting angle[J]. INORGANIC CHEMISTRY,2008,47(13):5720-5726.
APA Wang, Xin-Yi,Wang, Zhe-Ming,&Gao, Song.(2008).Detailed magnetic studies on Co(N-3)(2)(4-acetylpyridine)(2): a weak-ferromagnet with a very big canting angle.INORGANIC CHEMISTRY,47(13),5720-5726.
MLA Wang, Xin-Yi,et al."Detailed magnetic studies on Co(N-3)(2)(4-acetylpyridine)(2): a weak-ferromagnet with a very big canting angle".INORGANIC CHEMISTRY 47.13(2008):5720-5726.
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