Related Experiment Video
Updated: Jun 7, 2025
08:07
A Micropatterning Assay for Measuring Cell Chirality
Published on: March 11, 2022
2.3K
The chirality-induced spin selectivity effect in asymmetric spin transport: from solution to device applications
Ritu Gupta1, Anujit Balo2, Rabia Garg3
1Department of Chemistry, Indian Institute of Technology Kanpur Uttar Pradesh-208016 India pcmondal@iitk.ac.in.
Chemical Science
|November 21, 2024
Summary
Chirality-induced spin selectivity (CISS) enables spin-polarized electrons without magnets. This review explores CISS effects in chiral materials for advanced spintronics and quantum applications.
Area of Science:
- Molecular spintronics
- Quantum information science
- Materials science
Background:
- The chirality-induced spin selectivity (CISS) effect is a key phenomenon in molecular spintronics.
- It allows for the generation of spin-polarized electrons without requiring magnetic materials.
- Chiral materials exhibit unique spin-filtering properties with significant potential.
Purpose of the Study:
- To review experimental and theoretical frameworks of the CISS effect.
- To highlight the impact of CISS on spintronics and related scientific areas.
- To explore novel chiral materials for advancing spin-based technologies.
Main Methods:
- Compilation and analysis of recent experimental results on CISS.
- Investigation of theoretical models explaining spin selectivity in chiral systems.
- Exploration of diverse chiral organic and inorganic materials for CISS phenomena.
Main Results:
- Experimental studies confirm the spin-filtering capabilities of chiral molecules.
- CISS influences spin-polarized electron transport and photoemission.
- Promising applications in spintronics, chiral recognition, and quantum information.
Conclusions:
- The CISS effect offers a promising route for developing novel spin-based technologies.
- Further research into chiral materials can expand spin manipulation possibilities.
- Understanding the interplay between chirality and electron spin is crucial for future advancements.
Related Concept Videos
02:30Chirality in Nature
12.9K
Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
12.9K
02:24Properties of Enantiomers and Optical Activity
16.7K
It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...
16.7K
02:25Chirality
23.3K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
23.3K
02:30Chirality at Nitrogen, Phosphorus, and Sulfur
5.7K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
5.7K
02:05Prochirality
3.8K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
3.8K
02:15SN1 Reaction: Stereochemistry
8.3K
This lesson provides an in-depth discussion of the stereochemical outcomes in an SN1 reaction.
In the first step of an SN1 reaction, the bond between the electrophilic carbon and the leaving group ionizes to generate the carbocation intermediate. The second step of the mechanism is the nucleophilic attack.
In the formed carbocation, the positively charged carbon is sp2 hybridized with a trigonal planar geometry. As all the three substituents lie on the same plane, a plane of symmetry for the...
In the first step of an SN1 reaction, the bond between the electrophilic carbon and the leaving group ionizes to generate the carbocation intermediate. The second step of the mechanism is the nucleophilic attack.
In the formed carbocation, the positively charged carbon is sp2 hybridized with a trigonal planar geometry. As all the three substituents lie on the same plane, a plane of symmetry for the...
8.3K