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Updated: Apr 21, 2026
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Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
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Temperature-Enhanced Coercive Field by Chiral Molecules
Yael Kapon1, Lilach Brann1, Shira Yochelis1
1Department of Applied Physics, The Hebrew University, Jerusalem 9190401, Israel.
The Journal of Physical Chemistry Letters
|April 20, 2026
Summary
The chiral-induced spin selectivity (CISS) effect
Area of Science:
- Condensed matter physics
- Chemical physics
- Materials science
Background:
- Chiral-induced spin selectivity (CISS) links electron spin and molecular chirality.
- CISS affects magnetic materials but its temperature dependence is unknown.
Purpose of the Study:
- Investigate temperature dependence of CISS-induced magnetic coercivity.
- Examine ribose-aminooxazoline (RAO) crystals on ferromagnetic surfaces.
Main Methods:
- Studied temperature effects on magnetic coercivity of RAO crystals on ferromagnetic surfaces.
- RAO is a stable, prebiotic chiral organic molecule.
Main Results:
- Observed a significant increase in magnetic coercivity with rising temperature.
- Magnetic coercivity increased by ~1 mT over a 60 °C change.
- Contrary to classical expectations, coercivity strengthened at higher temperatures.
Conclusions:
- Results suggest a vibronic contribution to CISS from electron-phonon interactions.
- Spin-dependent chiral-magnetic surface interactions can strengthen at higher temperatures.
- Provides insight into CISS origins and robustness of spin-controlled processes.
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