TY  - JOUR
AU  - Ji, Ting
AU  - Deng, Quanzheng
AU  - Chen, Hao
AU  - Han, Lu
AU  - Qu, Zhibei
AU  - Che, Shunai
AU  - Duan, Yingying
PY  - 2024
TI  - Spin chiral anisotropy of diamagnetic chiral mesostructured In2O3 films
JO  - Nano Research
SN  - 1998-0124
SP  - 7756
EP  - 7761
VL  - 17
IS  - 8
AB  - 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 field-dependent symmetric MCD signals. These findings provide insights into spin manipulation of spin-paired diamagnets.
UR  - https://doi.org/10.1007/s12274-024-6572-y
DO  - 10.1007/s12274-024-6572-y