Room Temperature Multiferroicity of Charge Transfer Crystals

ACS Nano. 2015 Sep 22;9(9):9373-9. doi: 10.1021/acsnano.5b03558. Epub 2015 Aug 11.


Room temperature multiferroics has been a frontier research field by manipulating spin-driven ferroelectricity or charge-order-driven magnetism. Charge-transfer crystals based on electron donor and acceptor assembly, exhibiting simultaneous spin ordering, are drawing significant interests for the development of all-organic magnetoelectric multiferroics. Here, we report that a remarkable anisotropic magnetization and room temperature multiferroicity can be achieved through assembly of thiophene donor and fullerene acceptor. The crystal motif directs the dimensional and compositional control of charge-transfer networks that could switch magnetization under external stimuli, thereby opening up an attractive class of all-organic nanoferronics.

Keywords: organic magnetoelectric coupling; organic multiferroics; organic self-assembly.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.