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Updated: Mar 8, 2026
07:42
Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
3.4K
A new approach towards spintronics-spintronics with no magnets
Karen Michaeli1, Vaibhav Varade, Ron Naaman
1Department of Condensed Matter, Weizmann Institute of Science, Rehovot 76100, Israel.
Summary
The chiral induced spin selectivity (CISS) effect enables spin current injection without magnets. This phenomenon in chiral molecules offers new possibilities for spintronic devices at room temperature.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Organic Electronics
Background:
- The chiral induced spin selectivity (CISS) effect is a recently discovered phenomenon.
- It allows for spin-polarized current injection without requiring permanent magnetic layers.
- The effect is observed in chiral molecules and systems lacking inversion symmetry.
Purpose of the Study:
- To review the theoretical foundations of the CISS effect.
- To present examples of spin-valves utilizing chiral systems.
- To highlight the potential of CISS-based technology for spintronics.
Main Methods:
- Theoretical analysis of the CISS effect in chiral systems.
- Experimental review of spin-valve devices based on chiral molecules.
- Discussion of magnetoresistance properties at room temperature.
Main Results:
- The CISS effect provides a mechanism for generating spin-polarized currents.
- Chiral systems can be engineered into spin-valves without magnetic materials.
- Relatively large magnetoresistance values are achievable at room temperature.
Conclusions:
- The CISS effect represents a significant advancement in spin current generation.
- CISS-based spin-valves offer a novel approach for spintronic applications.
- This technology holds promise for efficient and room-temperature spintronic devices.
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