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  Coexistence of spin ordering on ladders and spin dimer formation in a new-structure-type compound Sr2Co3S2O3

Lai, K. T., & Valldor, M. (2017). Coexistence of spin ordering on ladders and spin dimer formation in a new-structure-type compound Sr2Co3S2O3. Scientific Reports, 7: 43767, pp. 1-9. doi:10.1038/srep43767.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-223B-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-04BA-7
Genre: Journal Article

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 Creators:
Lai, Kwing To1, Author              
Valldor, Martin2, Author              
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2Martin Valldor, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863454              

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 Abstract: We report on the syntheses and characterizations of single crystalline and polycrystalline Sr2Co3S2O3 with a novel crystal structure type. It contains Co-O 2-leg rectangular ladders and necklace ladders. The two ladders share common legs and construct a hybrid spin ladder. A rare meridional heteroleptic octahedral coordination is found for the Co2+ ions in the 2-leg ladder. Within the necklace ladders, the Co2+ ions are in trans-octahedral coordination. An antiferromagnetic order is observed at T-N -267 K, while a broad maximum in magnetic susceptibility is found below T-N. This relatively high ordering temperature among Co-based ladder compounds is related to the highly anisotropic mer-coordination of the Co2+ ions. The trans-octahedrally coordinated Co2+ ions, on the other hand, corresponds to the possible short-range magnetic correlations through dimers with an effective S = 3/2. This results in a rare situation that spin ordering and spin dimers coexist down to 2 K.

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Language(s): eng - English
 Dates: 2017-03-032017-03-03
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000396018800001
DOI: 10.1038/srep43767
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 7 Sequence Number: 43767 Start / End Page: 1 - 9 Identifier: ISSN: 2045-2322
CoNE: /journals/resource/2045-2322