Spin selectivity in chiral metal-halide semiconductors.
Tanglue Feng1, Zhiyu Wang1, Zixuan Zhang1
1Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China (SAR). haipenglu@ust.hk.
Chiral metal-halide semiconductors (MHS) enable spin control in advanced devices. This review explores MHS
Area of Science:
- Materials Science
- Condensed Matter Physics
- Quantum Chemistry
Background:
- Controlling electron spin states is crucial for next-generation optoelectronics and spintronics.
- Chiral metal-halide semiconductors (MHS) are emerging materials for spin-dependent applications.
Purpose of the Study:
- To review the chemical and structural diversity of chiral MHS.
- To elucidate the mechanism of chirality formation in MHS.
- To summarize spin-sensitive photophysical and transport processes enabled by chirality.
Main Methods:
- Literature review of chiral MHS properties.
- Analysis of chirality formation mechanisms.
- Summary of experimental demonstrations in photonic and spintronic devices.
Main Results:
- Chirality in MHS enables spin selectivity.
- Diverse chemical and structural properties of chiral MHS identified.
- Recent progress in spin control using chiral MHS devices highlighted.
Conclusions:
- Chiral MHS offer significant potential for spin-based technologies.
- Further research is needed to address challenges and explore opportunities in chiral MHS.
More Related Videos
10:42Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
08:12Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
Published on: September 8, 2017
Related Concept Videos
Regioselectivity of Electrophilic Additions to Alkenes: Markovnikov's Rule
The hydrohalogenation of an unsymmetrical alkene can yield two haloalkane products, depending on which vinylic carbon takes up the halogen. However, one product usually predominates, where hydrogen adds to the vinylic carbon bearing the...
Chirality at Nitrogen, Phosphorus, and Sulfur
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
Radical Halogenation: Stereochemistry
Halogenation to form a new chiral center:
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
Regioselectivity of Electrophilic Additions-Peroxide Effect
Stereoisomerism
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
