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Updated: Apr 11, 2026
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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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Spin-Chiral Lattice-Photon Coupling in Organic Chiral Cocrystals with Temperature-Induced Chirality Inversion
Zhiyan Chen1, Tianhao Liu1, Zhixin Sun1
1College of Physics, University-Industry Joint Center for Ocean Observation and Broadband Communication, National Demonstration Center for Experimental Applied Physics Education, Qingdao University, Qingdao 266071, China.
Nano Letters
|April 10, 2026
Summary
Chiral enantiomeric cocrystals exhibit distinct spin polarization. Temperature-induced chiral inversion in right-handed cocrystals leads to nonlinear spin polarization changes and tunable optical properties.
Area of Science:
- Quantum Materials Science
- Solid-State Physics
- Chirality Studies
Background:
- Chirality is crucial for quantum phenomena, interacting with spin and photon degrees of freedom.
- Understanding chiral materials is key to developing novel quantum devices.
Purpose of the Study:
- To fabricate chiral enantiomeric cocrystals with distinct spin polarization.
- To investigate the influence of chiral lattice structure and phase transitions on spin and optical properties.
Main Methods:
- Fabrication of right-handed and left-handed chiral enantiomeric cocrystals.
- Magnetization measurements to observe spin polarization.
- Analysis of temperature-dependent chiral inversion and phase transitions.
- Investigation of circularly polarized light effects on optical transmittance.
Main Results:
- Right-handed and left-handed cocrystals show significantly different spin polarization.
- A temperature-triggered chiral inversion occurs in the right-handed cocrystal.
- Spin polarization increases nonlinearly with decreasing temperature due to phase transition.
- Chiral inversion affects spin degeneracy lifting and magnetic field control of transmittance.
- Circularly polarized light tunes the chiral lattice phase transition temperature.
Conclusions:
- The chiral lattice structure is the primary factor for observed magnetization variations.
- Dynamic chiral lattice effects significantly influence spin and optical properties in homochiral cocrystals.
- This work offers insights into temperature and light-tunable chiral spin-optical phenomena.
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