Spin chiral anisotropy of diamagnetic chiral mesostructured In_(2)O_(3) films  

作　　者：Ting Ji Quanzheng Deng Hao Chen Lu Han Zhibei Qu Shunai Che Yingying Duan 

机构地区：[1]Frontiers Science Center for Transformative Molecules,State Key Laboratory of Metal Matrix Composites,Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs,School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [2]School of Chemical Science and Engineering,Tongji University,Shanghai 200092,China [3]Department of Medicinal Chemistry,School of Pharmacy,Fudan University,Shanghai 201203,China

出　　处：《Nano Research》2024年第8期7756-7761,共6页纳米研究（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2021YFA1200301,S.A.C.);the National Natural Science Foundation of China(Nos.21931008,S.A.C.and 21975184,Y.Y.D.);Shanghai Pilot Program for Basic Research-Shanghai Jiao Tong University(No.21TQ1400219).

摘　　要：Spin chiral anisotropy(SChA)refers to the occurrence of different spin polarization in antipodal chiral structures.Herein,we report the SChA in diamagnetic chiral mesostructured In2O3 films(CMIFs)with manifestation of chirality-dependent magnetic circular dichroism(MCD)signals.CMIFs were grown on fluorine-doped tin dioxide conductive glass(FTO)substrates,which were synthesized via a hydrothermal route,with malic acid used as the symmetry-breaking agent.Two levels of chirality have been identified in CMIFs:primary nanoflakes with atomically twisted crystal lattices and secondary helical stacking of the nanoflakes.CMIFs exhibit chirality-dependent asymmetric MCD signals due to the different interactions of chirality-induced effective magnetic field and external magnetic field,which distinguish from the commonly observed external magnetic fielddependent symmetric MCD signals.These findings provide insights into spin manipulation of spin-paired diamagnets.

关 键 词：chiral inorganics MESOSTRUCTURE diamagnet spin chiral anisotropy(SChA) magnetic circular dichroism(MCD) 

分 类 号：O62[理学—有机化学]