手性(物理)
凝聚态物理
圆二色性
自旋(空气动力学)
材料科学
对称性破坏
化学物理
化学
结晶学
手征对称破缺
物理
量子力学
Nambu–Jona Lasinio模型
热力学
作者
Te Bai,Jing Ai,Liyang Liao,Jun‐Wei Luo,Cheng Song,Yingying Duan,Lu Han,Shunai Che
标识
DOI:10.1002/anie.202101069
摘要
Abstract Spin polarisation is found in the centrosymmetric nonferromagnetic crystals, chiral mesostructured NiO films (CMNFs), fabricated through the symmetry‐breaking effect of a chiral molecule. Two levels of chirality were identified: primary nanoflakes with atomically twisted crystal lattices and secondary helical stacking of the nanoflakes. Spin polarisation of the CMNFs was confirmed by chirality‐dependent magnetic‐tip conducting atomic force microscopy (mc‐AFM) and magnetic field‐independent magnetic circular dichroism (MCD). Electron transfer in the symmetry‐breaking electric field was speculated to create chirality‐dependent effective magnetic fields. The asymmetric spin–orbit coupling (SOC) generated by effective magnetic fields selectively modifies the opposite spin motion in the antipodal CMNFs. Our findings provide fundamental insights for directional spin control in unprecedented functional inorganic materials.
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