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All-polymeric control of nanoferronics

Li, Huashan
Hall, Asha
Gao, Wenxiu
Gong, Maogang
Yuan, Guoliang
Grossman, Jeffrey
Ren, Shenqiang
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Journal article
Date
2015-12-18
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Department
Mechanical Engineering
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DOI
https://doi.org/10.1126/sciadv.1501264
Abstract
In the search for light and flexible nanoferronics, significant research effort is geared toward discovering the coexisting magnetic and electric orders in crystalline charge-transfer complexes. We report the first example of multiferroicity in centimeter-sized crystalline polymeric charge-transfer superstructures that grow at the liquid-air interface and are controlled by the regioregularity of the polymeric chain. The charge order–driven ferroic mechanism reveals spontaneous and hysteretic polarization and magnetization at the donor-acceptor interface. The charge transfer and ordering in the ferroic assemblies depend critically on the self-organizing and molecular packing of electron donors and acceptors. The invention described here not only represents a new coupling mechanism of magnetic and electric ordering but also creates a new class of emerging all-organic nanoferronics.
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American Association for the Advancement of Science
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Science Advances, Vol. 1, Iss. 11
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