2009/09/02 by Prashant K. Jain, V. Ramachandran, Ronald J. Clark +5 · 1 citation
Materials Science · Chemistry · Engineering · #Solid-state spectroscopy and crystallography #Metal-Organic Frameworks: Synthesis and Applications #Perovskite Materials and Applications
paper · doi:10.1021/ja904156s
openalex publication_date 2009/09/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/22
Multiferroic behavior in perovskite-related metal-organic frameworks of general formula [(CH(3))(2)NH(2)]M(HCOO)(3), where M = Mn, Fe, Co, and Ni, is reported. All four compounds exhibit paraelectric-antiferroelectric phase transition behavior in the temperature range 160-185 K (Mn: 185 K, Fe: 160 K; Co: 165 K; Ni: 180 K); this is associated with an order-disorder transition involving the hydrogen bonded dimethylammonium cations. On further cooling, the compounds become canted weak ferromagnets below 40 K. This research opens up a new class of multiferroics in which the electrical ordering is achieved by means of hydrogen bonding.