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

Room Temperature Multiferroicity of Charge Transfer Crystals.

Author information

1
Department of Mechanical Engineering, Temple University , Philadelphia, Pennsylvania 19122, United States.
2
Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
3
School of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing, China.
4
Department of Materials Science and Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States.

Abstract

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

PMID:
26257033
DOI:
10.1021/acsnano.5b03558

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