Strong magneto-chiral dichroism in enantiopure chiral ferromagnets

Nature Materials
Cyrille TrainMichel Verdaguer

Abstract

As materials science is moving towards the synthesis, the study and the processing of new materials exhibiting well-defined and complex functions, the synthesis of new multifunctional materials is one of the important challenges. One of these complex physical properties is magneto-chiral dichroism which arises, at second order, from the coexistence of spatial asymmetry and magnetization in a material. Herein we report the first measurement of strong magneto-chiral dichroism in an enantiopure chiral ferromagnet. The ab initio synthesis of the enantiopure chiral ferromagnet is based on an enantioselective self-assembly, where a resolved chiral quaternary ammonium cation imposes the absolute configurations of the metal centres within chromium-manganese two-dimensional oxalate layers. The ferromagnetic interaction between Cr(III) and Mn(II) ions leads to a Curie temperature of 7 K. The magneto-chiral dichroic effect is enhanced by a factor of 17 when entering into the ferromagnetic phase.

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Citations

Oct 31, 2013·Inorganic Chemistry·Michał J KobyłkaJerzy Lisowski
May 17, 2013·Inorganic Chemistry·Qiang GaoAllan J Jacobson
Jul 19, 2013·Inorganic Chemistry·Cai-Ming LiuDao-Ben Zhu
Aug 24, 2013·Inorganic Chemistry·Matteo AtzoriCarlos J Gómez García
Oct 24, 2012·Nature Chemistry·Norihisa HoshinoHiroki Oshio
Oct 24, 2012·Nature Chemistry·Michel Verdaguer
Mar 27, 2009·Chemical Society Reviews·Jeanne Crassous
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Mar 18, 2010·Chemical Communications : Chem Comm·Emilio PardoCarley Paulsen
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Jun 17, 2011·Chemical Communications : Chem Comm·Yuan-Yuan ZhuSong Gao
Nov 1, 2011·Chemical Communications : Chem Comm·Lihong LiPeter Scott
Oct 23, 2015·Inorganic Chemistry·Thais GranchaEmilio Pardo
Oct 16, 2015·Inorganic Chemistry·Javier López-CabrellesEugenio Coronado
Sep 1, 2015·Inorganic Chemistry·Thais GranchaEmilio Pardo
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