Chirality-Induced Orbital Selectivity through Linear-Orbital Coupling

• URL: http://arxiv.org/abs/2509.07675v1
• Date: Tue, 09 Sep 2025 12:43:17 GMT
• Title: Chirality-Induced Orbital Selectivity through Linear-Orbital Coupling
• Authors: Namgee Cho, James Lim, Martin B. Plenio,
• Abstract summary: Chirality-induced orbital selectivity (CIOS) produces pronounced enantiospecific transmission.<n>CIOS plays a critical role alongside existing spin-based mechanisms.
• Score: 0.38233569758620045
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This work investigates electron transport through chiral electrostatic potentials by modeling the system in three spatial dimensions and demonstrates that chirality-induced orbital selectivity (CIOS) produces pronounced enantiospecific transmission, dependent on the electron's initial orbital angular momentum (OAM) state. The results show that transverse electron motion in a chiral environment, captured by OAM dynamics, gives rise to strong orbital selectivity that reverses upon inversion of the handedness of the chiral potential. This behavior originates from a coupling between the electron's linear and orbital angular momenta, leading to effects that are significantly stronger than those arising from spin-phonon and bare spin-orbit interactions under realistic physical conditions. Moreover, the CIOS effect is shown to increase with the length of the chiral region and remains robust against static disorder. The orbital selectivity can give rise to spin selectivity when initial correlations exist between spin and OAM states. These findings underscore the importance of orbital contributions to enantiospecific electron transport in chiral systems and suggest that CIOS plays a critical role alongside existing spin-based mechanisms.

Related papers

• Engineered Chirality of One-Dimensional Nanowires [4.742859282764092]
  The origin and function of chirality in DNA, proteins, and other building blocks of life represent a central question in biology.<n>We use reconfigurable nanoscale control over conductivity at the LaAlO$_3$/SrTiO$_3$ interface to create chiral electron potentials that explicitly lack mirror symmetry.<n>We interpret resonances as arising from an engineered axial spin-orbit interaction within the chiral region.
  arXiv  Detail & Related papers  (2025-02-08T19:14:00Z)
• Thermal masses and trapped-ion quantum spin models: a self-consistent approach to Yukawa-type interactions in the $λ\!φ^4$ model [44.99833362998488]
  A quantum simulation of magnetism in trapped-ion systems makes use of the crystal vibrations to mediate pairwise interactions between spins. These interactions can be accounted for by a long-wavelength relativistic theory, where the phonons are described by a coarse-grained Klein-Gordon field. We show that thermal effects, which can be controlled by laser cooling, can unveil this flow through the appearance of thermal masses in interacting QFTs.
  arXiv  Detail & Related papers  (2023-05-10T12:59:07Z)
• Floquet-engineered chiral-induced spin selectivity [0.0]
  We show that CISS can be observed in achiral systems driven by an external circularly polarized laser field in the framework of Floquet engineering. To obtain a wider range of energies for large spin polarization, a combination of chiral molecules and light-matter interactions is considered.
  arXiv  Detail & Related papers  (2023-02-20T07:06:17Z)
• Interplay of Structural Chirality, Electron Spin and Topological Orbital in Chiral Molecular Spin Valves [0.0]
  Chirality has been a property of central importance in chemistry and biology for more than a century, and is now taking on increasing relevance in condensed matter physics. electrons were found to become spin polarized after transmitting through chiral molecules, crystals, and their hybrids. This phenomenon, called chirality-induced spin selectivity (CISS), presents broad application potentials and far-reaching fundamental implications.
  arXiv  Detail & Related papers  (2022-09-16T18:05:29Z)
• Spin-Dependent Momentum Conservation of Electron-Phonon Scattering in Chirality-Induced Spin Selectivity [1.3124513975412255]
  We show that spin selectivity can originate from spin-dependent energy and momentum conservation in electron-phonon scattering events. The degree of spin polarization depends on environmental factors, such as external driving fields, temperatures and phonon relaxation rates.
  arXiv  Detail & Related papers  (2022-09-12T15:29:00Z)
• Spin Current Density Functional Theory of the Quantum Spin-Hall Phase [59.50307752165016]
  We apply the spin current density functional theory to the quantum spin-Hall phase. We show that the explicit account of spin currents in the electron-electron potential of the SCDFT is key to the appearance of a Dirac cone.
  arXiv  Detail & Related papers  (2022-08-29T20:46:26Z)
• Interface-Induced Conservation of Momentum Leads to Chiral-Induced Spin Selectivity [1.3124513975412255]
  We study the non-equilibrium dynamics of electron transmission from a straight waveguide to a helix with spin-orbit coupling. The degree of spin selectivity depends on the width of the interface region, and no polarization is found for single-point couplings.
  arXiv  Detail & Related papers  (2021-11-29T18:21:08Z)
• Relativistic aspects of orbital and magnetic anisotropies in the chemical bonding and structure of lanthanide molecules [60.17174832243075]
  We study the electronic and ro-vibrational states of heavy homonuclear lanthanide Er2 and Tm2 molecules by applying state-of-the-art relativistic methods. We were able to obtain reliable spin-orbit and correlation-induced splittings between the 91 Er2 and 36 Tm2 electronic potentials dissociating to two ground-state atoms.
  arXiv  Detail & Related papers  (2021-07-06T15:34:00Z)
• Demonstration of electron-nuclear decoupling at a spin clock transition [54.088309058031705]
  Clock transitions protect molecular spin qubits from magnetic noise. linear coupling to nuclear degrees of freedom causes a modulation and decay of electronic coherence. An absence of quantum information leakage to the nuclear bath provides opportunities to characterize other decoherence sources.
  arXiv  Detail & Related papers  (2021-06-09T16:23:47Z)
• Effects of the dynamical magnetization state on spin transfer [68.8204255655161]
  We show that the complex interactions between the spin-polarized electrons and the dynamical states of the local spins can be decomposed into separate processes. Our results suggest that exquisite control of spin transfer efficiency and of the resulting dynamical magnetization states may be achievable.
  arXiv  Detail & Related papers  (2021-01-21T22:12:03Z)
• Effect of phonons on the electron spin resonance absorption spectrum [62.997667081978825]
  We model the effect of phonons and temperature on the electron spin resonance (ESR) signal in magnetically active systems. We find that the suppression of ESR signals is due to phonon broadening but not based on the common assumption of orbital quenching.
  arXiv  Detail & Related papers  (2020-04-22T01:13:07Z)
• Energy and momentum conservation in spin transfer [77.34726150561087]
  We show that energy and linear momentum conservation laws impose strong constraints on the properties of magnetic excitations induced by spin transfer. Our results suggest the possibility to achieve precise control of spin transfer-driven magnetization dynamics.
  arXiv  Detail & Related papers  (2020-04-04T15:43:30Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.