This study is led by Dr. Haixia Zhao, Prof. Lasheng Long, (Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering, Xiamen University, China) and Prof. Guilin Zhuang (College of Chemical Engineering, Zhejiang University of Technology, China). They report magnetoelectric effect in a molecular-based compound of [(CH3)3NCH2CH2Br][Fe(Cl2An)2(H2O)2] (Cl2An = chloranilate, (CH3)3NCH2CH2Br+ = (2-bromoethyl)trimethylammonium). Under the external magnetic field, the compound exhibits a positive magnetodielectric effect of up to 12%, and its polarization increases significantly with the increase of the applied magnetic field. Spin-polarized computational calculations reveal that the magnetoelectric coupling effect is mainly derived from spin-orbit coupling between FeII and Cl2An−• under the magnetic field, and the significant increase in electric polarization under magnetic field is mainly due to the spin-mediated charge transfer.
Molecular-Based Materials Achieve Magnetoelectric Coupling via Electron Transfer
Science China Press
/Public Release. This material from the originating organization/author(s) might be of the point-in-time nature, and edited for clarity, style and length. Mirage.News does not take institutional positions or sides, and all views, positions, and conclusions expressed herein are solely those of the author(s).View in full here.
