Low-symmetry nanowire cross-sections for enhanced Dresselhaus spin-orbit interaction
arXiv:1910.00562 · doi:10.1103/PhysRevB.103.195444
Abstract
We study theoretically the spin-orbit interaction of low-energy electrons in semiconducting nanowires with a zinc-blende lattice. The effective Dresselhaus term is derived for various growth directions, including <11(-2)>-oriented nanowires. While a specific configuration exists where the Dresselhaus spin-orbit coupling is suppressed even at confinement potentials of low symmetry, many configurations allow for a strong Dresselhaus coupling. In particular, we discuss qualitative and quantitative results for nanowire cross-sections modeled after sectors of rings or circles. The parameter dependence is analyzed in detail, enabling predictions for a large variety of setups. For example, we gain insight into the spin-orbit coupling in recently fabricated GaAs-InAs nanomembrane-nanowire structures. By combining the effective Dresselhaus and Rashba terms, we find that such structures are promising platforms for applications where an electrically controllable spin-orbit interaction is needed. If the nanowire cross-section is scaled down and InAs replaced by InSb, remarkably high Dresselhaus-based spin-orbit energies of the order of millielectronvolt are expected. A Rashba term that is similar to the effective Dresselhaus term can be induced via electric gates, providing means to switch the spin-orbit interaction on and off. By varying the central angle of the circular sector, we find, among other things, that particularly strong Dresselhaus couplings are possible when nanowire cross-sections resemble half-disks.
arXiv comment17 pages containing 7 figures as PDF-files
References in corpus (69)
- Quantum Computation with Quantum Dots
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
- Helical liquids and Majorana bound states in quantum wires
- New directions in the pursuit of Majorana fermions in solid state systems
- Spins in few-electron quantum dots
- New Perspectives for Rashba Spin-Orbit Coupling
- Search for Majorana fermions in superconductors
- Non-Abelian statistics and topological quantum information processing in 1D wire networks
- Realizing Majorana zero modes in superconductor-semiconductor heterostructures
- Non-ballistic spin field-effect transistor
- Semiconductor Spintronics
- Spin-orbit qubit in a semiconductor nanowire
- A CMOS silicon spin qubit
- An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
- Emergence of the persistent spin helix in semiconductor quantum wells
- Circuit Quantum Electrodynamics with a Spin Qubit
- Gate-Controlled Spin-Orbit Quantum Interference Effects in Lateral Transport
- Weak Antilocalization and Spin Precession in Quantum Wells
- Prospects for Spin-Based Quantum Computing
- The germanium quantum information route
- Electric Dipole Induced Spin Resonance in Quantum Dots
- Orbital mechanisms of electron spin manipulation by an electric field
- Spectroscopy of spin-orbit quantum bits in indium antimonide nanowires
- Ge hole spin qubit
- Direct mapping of the formation of a persistent spin helix: Supplementary information
- Strong Spin-Orbit Interaction and Helical Hole States in Ge/Si Nanowires
- Persistent Spin Textures in Semiconductor Nanostructures
- Strong tuning of Rashba spin orbit interaction in single InAs nanowires
- Fast spin-orbit qubit in an indium antimonide nanowire
- Time-Reversal Invariant Parafermions in Interacting Rashba Nanowires
- Spin-orbit interaction in InSb nanowires
- Spin-Orbit Mediated Control of Spin Qubits
- Spin-orbit interaction in symmetric wells with two subbands
- Direct Rashba spin-orbit interaction in Si and Ge nanowires with different growth directions
- Template-assisted scalable nanowire networks
- Parafermions in Interacting Nanowire Bundle
- Conductance through a helical state in an InSb nanowire
- Monolithic growth of ultra-thin Ge nanowires on Si(001)
- Spin Splitting in Symmetrical SiGe Quantum Wells
- Electrical control of g-factors in a few-hole silicon nanowire MOSFET
- Heavy hole states in Germanium hut wires
- Stretchable persistent spin helices in GaAs quantum wells
- Electric field effect on electron spin splitting in SiGe/Si quantum wells
- First-principles studies of orbital and spin-orbit properties of GaAs, GaSb, InAs, and InSb zinc-blende and wurtzite semiconductors
- Full Electrical Control of the Electron Spin Relaxation in GaAs Quantum Wells
- Cubic Dresselhaus Spin-Orbit Coupling in 2D Electron Quantum Dots
- Orbital contributions to the electron g-factor in semiconductor nanowires
- Self-controlled growth of highly uniform Ge/Si hut wires for scalable qubit devices
- Spin-3/2 physics of semiconductor hole nanowires: Valence-band mixing and tunable interplay between bulk-material and orbital bound-state spin splittings
- Spin relaxation in (110) and (001) InAs/GaSb superlattices
- Spin precession and modulation in ballistic cylindrical nanowires due to the Rashba effect
- Enhanced spin-orbit coupling in core/shell nanowires
- Spin-orbit coupling effects in zinc-blende InSb and wurtzite InAs nanowires: Realistic calculations with multiband method
- Control of Spin Helix Symmetry in Semiconductor Quantum Wells by Crystal Orientation
- Tuning Rashba spin-orbit coupling in homogeneous semiconductor nanowires
- Spin-orbit interaction and induced superconductivity in an one-dimensional hole gas
- Weak (anti)localization in tubular semiconductor nanowires with spin-orbit coupling
- Majorana states in prismatic core-shell nanowires
- Spin polarization anisotropy in a narrow spin-orbit-coupled nanowire quantum dot
- Strong Electron-Electron Interactions of a Tomonaga--Luttinger Liquid Observed in InAs Quantum Wires
- Symmetry Breaking of the Persistent Spin Helix in Quantum Transport
- Enhanced Rashba spin-orbit coupling in core-shell nanowires by the interfacial effect
- Orbital effects of a strong in-plane magnetic field on a gate-defined quantum dot
- Effect of spin-orbit coupling on spectral and transport properties of tubular electron gas in InAs nanowires
- Closed-form weak localization magnetoconductivity in quantum wells with arbitrary Rashba and Dresselhaus spin-orbit interactions
- G-factor of electrons in gate-defined quantum dots in a strong in-plane magnetic field
- Charge transport of a spin-orbit-coupled Luttinger liquid
- Dresselhaus spin-orbit coupling in [111]-oriented semiconductor nanowires