Orbital effect of an in-plane magnetic field on quantum transport in chaotic lateral dots
@article{Falko2002OrbitalEO, title={Orbital effect of an in-plane magnetic field on quantum transport in chaotic lateral dots}, author={Vladimir I. Fal’ko and Tom{\'a}{\vs} Jungwirth}, journal={Physical Review B}, year={2002}, volume={65}, pages={081306} }
We show that an in-plane magnetic field is able to break time-reversal symmetry of the orbital motion of electrons in two-dimensional semiconductor structures, due to the momentum-dependent inter-subband, mixing, which results in supression of weak localization effect. Then, we analyze the influence of the in-plane field on weak localization correction and universal fluctuations of conductance in large-area chaotic semiconductor quantum dots.
16 Citations
Orbital effects of in-plane magnetic fields probed by mesoscopic conductance fluctuations
- Physics
- 2004
We use the high sensitivity to magnetic flux of mesoscopic conductance fluctuations in large quantum dots to investigate changes in the two-dimensional electron dispersion caused by an in-plane…
Orbital effects of a strong in-plane magnetic field on a gate-defined quantum dot
- PhysicsPhysical Review B
- 2019
We theoretically investigate the orbital effects of an in-plane magnetic field on the spectrum of a quantum dot embedded in a two-dimensional electron gas (2DEG). We derive an effective…
Spectroscopy of Quantum Dot Orbitals with In-Plane Magnetic Fields.
- PhysicsPhysical review letters
- 2019
In-plane magnetic-field-assisted spectroscopy allows extraction of the in-plane orientation and full 3D size parameters of the quantum mechanical orbitals of a single electron GaAs lateral quantum dot with subnanometer precision, demonstrating a versatile tool for quantum dots with one dominant axis of strong confinement.
Weak localization and conductance fluctuations in a quantum dot with parallel magnetic field and spin-orbit scattering
- Physics
- 2003
In the presence of both spin-orbit scattering and a magnetic field the conductance of a chaotic GaAs quantum dot displays quite a rich behavior. Using a Hamiltonian derived by Aleiner and Fal’ko…
Conductance Fluctuations and partially broken Spin Symmetries in Quantum Dots
- Physics
- 2005
Conductance fluctuations in GaAs quantum dots with spin-orbit and Zeeman coupling are investigated experimentally and compared to a random matrix theory formulation that defines a number of regimes…
Quantum in-plane magnetoresistance in 2D electron systems
- Physics
- 2002
Studies of low-dimensional electron systems subject to an in-plane magnetic field have come to the focus of intense attention recently. In several experiments the influence of an in-plane magnetic…
Parallel magnetic-field-induced conductance fluctuations in one- and two-subband ballistic quantum dots
- Physics
- 2003
We report on conductance fluctuations of ballistic quantum dots in a strictly parallel magnetic field B. The quantum dots are patterned in two-dimensional electron gases (2DEG's), confined to 15- and…
Orbital effect, subband depopulation, and conductance fluctuations in ballistic quantum dots under a tilted magnetic field.
- Physics
- 2005
Using two-dimensional electron gases (2DEGs) confined to wide and narrow quantum wells, we study the magnetoconductance of ballistic quantum dots as a function of the well width and the tilt angle of…
Coherence and Spin in GaAs Quantum Dots
- Physics
- 2004
This thesis describes a number of experiments performed in quantum dots as well as 2D systems fabricated in GaAs/AlGaAs 2D electron gases. The focus of the studies is set on spin, coherence and…
References
Supersymmetry in Disorder and Chaos
- Physics
- 1996
1. Introduction 2. Supermathematics 3. Diffusion modes 4. Nonlinear supermatrix sigma- model 5. Perturbation theory and renormalization group 6. Energy level statistics 7. Quantum size effects in…