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Updated: Jul 17, 2025
10:52
Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
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Laser-induced ultrafast spin-transfer processes in non-linear zigzag carbon chain systems
Mohamed Barhoumi1, Jing Liu2, Georgios Lefkidis1
1Department of Physics, Rheinland-Pfälzische Technische Universität Kaiserslautern (RPTU) Kaiserslautern-Landau, P.O. Box 3049, 67653 Kaiserslautern, Germany. lefkidis@rptu.de.
Physical Chemistry Chemical Physics : PCCP
|September 4, 2023
Summary
This study explores laser-induced ultrafast spin manipulation in nickel-carbon chain systems. Researchers achieved rapid spin-flip and spin-transfer dynamics, showing potential for all-optical logic units.
Area of Science:
- Quantum Chemistry
- Materials Science
- Nanotechnology
Background:
- Ultrafast spin manipulation is crucial for next-generation electronics.
- Carbon-based nanomaterials offer unique properties for spintronic applications.
Purpose of the Study:
- Investigate laser-induced ultrafast spin dynamics in Ni2@C32H32 and Ni2@C36H36 systems.
- Explore the influence of magnetic fields and laser pulse parameters on spin manipulation.
Main Methods:
- Coupling coupled-cluster singles and doubles (CCSD) and equation-of-motion CCSD (EOM-CCSD) with local and global Lambda processes.
- Utilizing Mulliken population analysis for spin density distribution calculations.
Main Results:
- Achieved various spin-flip and spin-transfer scenarios within subpicosecond timescales.
- Demonstrated preservation of spin-transfer under magnetic fields, with inhibition of local spin-flip.
- Investigated the impact of laser propagation angles and confirmed double laser pulses induce spin-transfer.
Conclusions:
- Carbon chain systems exhibit significant potential for all-optical integrated logic processing units.
- Subpicosecond spin dynamics are achievable, paving the way for high-speed spintronic devices.
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