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Metamagnetism in a coordination polymer built of trimeric cobalt units and melamine.
- 1.0580148 - ÚFCH JH 2024 RIV GB eng J - Journal Article
Bernabe Virseda, I. - Mantel, Arthur - Prado-Roller, A. - Eisterer, M. - Shiozawa, Hidetsugu
Metamagnetism in a coordination polymer built of trimeric cobalt units and melamine.
Royal Society Open Science. Roč. 10, č. 11 (2023), s. 230910. ISSN 2054-5703. E-ISSN 2054-5703
R&D Projects: GA ČR(CZ) GA19-15217S; GA ČR GA22-23407S; GA MŠMT 8F21010
Institutional support: RVO:61388955
Keywords : coordination polymer * spin trimer * metamagnetism
OECD category: Physical chemistry
Impact factor: 2.9, year: 2023
Method of publishing: Open access
A coordination polymer of linear trimeric cobalt units and melamine has been synthesized. The magnetic isotherms of violet coloured crystals as long as 400 mum show a field-induced transition in an external field of about 2 T at temperatures approximately below 2 K. It is addressed that by assuming the coexistent positive and negative exchange between the nearest-neighbour spins in the linear trimer, this metamagnetism can be interpreted as a transition from antiferromagnetic to ferromagnetic exchange within each trimeric spin cluster. Although weak inter-cluster or inter-chain exchange to yield a long-range magnetic order is another possible and often attributed origin of metamagnetism in low-dimensional spin systems, this study demonstrates the significance of the exchange flip within each cluster in clustered spin networks.
Permanent Link: https://hdl.handle.net/11104/0348912
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