Robust chirality-induced spin selectivity in topologically chiral molecular knots
Xi Sun, Kai-Yuan Zhang, Shu-Zheng Zhou, Hua-Hua Fu · 2025
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Description
Xi Sun, Kai-Yuan Zhang, Shu-Zheng Zhou, and Hua-Hua Fu build, in twenty twenty-five, a theory of spin selectivity in knotted molecules. Some twisted molecules let electrons of one spin pass far more easily than the other. That effect is called chirality-induced spin selectivity. Knotted molecules with a twist that comes from their topology, not their shape, showed near ninety percent spin polarization, plus far higher conductivity and heat stability. Why was unclear.
Their math shows a single trefoil knot, the simplest knot, gives spin polarization above sixty percent. The effect survived shrinking the lattice and straining the shape. When the knot was undone into a plain twisted shape, polarization fell sharply. Topology, they conclude, drives the effect.
Catalog record
| CREATOR | Xi Sun, Kai-Yuan Zhang, Shu-Zheng Zhou, Hua-Hua Fu |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 52 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |