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Spintronics and chirality: spin selectivity in electron transport through chiral molecules
1Department of Chemical Physics, Weizmann Institute, Rehovot 76100, Israel;
Annual Review of Physical Chemistry
|January 27, 2015
Summary
The chiral-induced spin selectivity (CISS) effect shows electron transmission through chiral molecules depends on spin. This review explores CISS theory, experiments, and potential for spintronic memory devices.
Area of Science:
- Condensed matter physics
- Quantum chemistry
- Materials science
Background:
- Chiral molecules exhibit spin-dependent electron transmission, known as the chiral-induced spin selectivity (CISS) effect.
- The CISS effect presents theoretical challenges and offers potential for organic spintronic devices.
Purpose of the Study:
- To review recent advancements in understanding the CISS effect.
- To discuss theoretical models, experimental techniques, and applications of CISS.
Main Methods:
- Overview of experimental techniques for measuring spin-selective electron transport.
- Presentation of theoretical models, including a simplified model for electron transport through chiral potentials.
- Analysis of experimental results from various chiral molecular systems.
Main Results:
- Experimental evidence confirms spin-dependent electron transmission through chiral molecules.
- Theoretical models suggest unusually large spin-orbit coupling in chiral molecules is key to the CISS effect.
- The CISS effect's magnitude can be explained by simplified models of electron transport.
Conclusions:
- The CISS effect is a significant phenomenon in molecular spintronics.
- Further research into theoretical models and experimental validation is ongoing.
- The CISS effect holds promise for developing novel organic memory devices.
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