English

Structural Chirality and Electronic Chirality in Quantum Materials

Materials Science 2024-08-07 v1

Abstract

In chemistry and biochemistry, chirality represents the structural asymmetry characterized by non-superimposable mirror images for a material like DNA. In physics, however, chirality commonly refers to the spin-momentum locking of a particle or quasiparticle in the momentum space. While seemingly disconnected, structural chirality in molecules and crystals can drive electronic chirality through orbital-momentum locking, i.e. chirality can be transferred from the atomic geometry to electronic orbitals. Electronic chirality provides an insightful understanding of the chirality-induced spin selectivity (CISS), in which electrons exhibit salient spin polarization after going through a chiral material, and electric magnetochiral anisotropy (EMCA), which is characterized by the diode-like transport. It further gives rise to new phenomena, such as anomalous circularly polarized light emission (ACPLE), in which the light handedness relies on the emission direction. These chirality-driven effects will generate broad impacts in fundamental science and technology applications in spintronics, optoelectronics, and biochemistry.

Keywords

Cite

@article{arxiv.2312.03902,
  title  = {Structural Chirality and Electronic Chirality in Quantum Materials},
  author = {Binghai Yan},
  journal= {arXiv preprint arXiv:2312.03902},
  year   = {2024}
}

Comments

Invited review for Annual Review on Materials Research

R2 v1 2026-06-28T13:43:24.859Z