Metamagnetism in a coordination polymer built of trimeric cobalt units and melamine.

0580148 - ÚFCH JH 2024 RIV GB eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GA19-15217S; GA ČR GA22-23407S; GA MŠMT 8F21010
Institucionální podpora: RVO:61388955
Klíčová slova: coordination polymer * spin trimer * metamagnetism
Obor OECD: Physical chemistry
Impakt faktor: 3.5, rok: 2022
Způsob publikování: 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.
Trvalý link: https://hdl.handle.net/11104/0348912