title: Room Temperature Multiferroicity of Charge Transfer Crystals.
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.
authors.affiliation: Department of Mechanical Engineering, Temple University , Philadelphia, Pennsylvania 19122, United States.
authors.forename: Wei
authors.initials: W
authors.lastname: Qin
authors.affiliation: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.|School of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing, China.
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Materials Science and Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States.
authors.forename: Huashan
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Mechanical Engineering, Temple University , Philadelphia, Pennsylvania 19122, United States.
authors.forename: Maogang
authors.initials: M
authors.lastname: Gong
authors.affiliation: School of Materials Science and Engineering, Nanjing University of Science and Technology , Nanjing, China.
authors.forename: Guoliang
authors.initials: G
authors.lastname: Yuan
authors.affiliation: Department of Materials Science and Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States.
authors.forename: Jeffrey C
authors.initials: JC
authors.lastname: Grossman
authors.affiliation: Department of Materials Science and Engineering, University of Maryland , College Park, Maryland 20742, United States.
authors.forename: Manfred
authors.initials: M
authors.lastname: Wuttig
authors.affiliation: Department of Mechanical Engineering, Temple University , Philadelphia, Pennsylvania 19122, United States.
authors.forename: Shenqiang
authors.initials: S
authors.lastname: Ren
keywords: organic magnetoelectric coupling; organic multiferroics; organic self-assembly