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Chirality-Induced Orbital Selectivity through Linear-Orbital Coupling
Namgee Cho1, James Lim1, Martin B Plenio1
1Institut für Theoretische Physik, Universität Ulm, Albert-Einstein-Allee 11, D-89081Ulm, Germany.
We developed a model showing chiral potentials cause orbital selectivity in electron transmission. This effect depends on orbital angular momentum and reverses with potential handedness, impacting electron transport.
Area of Science:
- Condensed matter physics
- Quantum mechanics
- Materials science
Background:
- Chiral molecules and materials exhibit unique electronic properties.
- Understanding electron transport through chiral potentials is crucial for nanoscale device applications.
- Orbital angular momentum (OAM) plays a role in electron behavior.
Purpose of the Study:
- To model electron transmission through a 3D chiral electrostatic potential.
- To investigate the emergence of chirality-induced orbital selectivity.
- To explore the influence of OAM and potential handedness on electron transmittance.
Main Methods:
- Developed a three-dimensional continuum model for electron transmission.
- Analyzed electron transmittance dependence on incident orbital angular momentum (OAM).
- Investigated the effect of potential handedness inversion on selectivity.
Main Results:
- Electron transmittance strongly depends on incident OAM.
- Selectivity reverses upon inverting the chiral potential's handedness.
- Linear-orbital coupling mediated by helical potential causes selectivity, robust to disorder.
Conclusions:
- Chirality-induced orbital selectivity is a significant phenomenon in electron transport.
- Orbital dynamics are a key factor in electron transport through chiral systems.
- The model provides insights into designing chiral electronic devices.
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