scholarly journals Large Zeeman Splitting in Out-of-Plane Magnetic Field in a Double-Layer Quantum Point Contact

2021 ◽  
Vol 90 (2) ◽  
pp. 024709
Author(s):  
Daiju Terasawa ◽  
Shota Norimoto ◽  
Tomonori Arakawa ◽  
Meydi Ferrier ◽  
Akira Fukuda ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Double Layer ◽  
Point Contact ◽  
Zeeman Splitting ◽  
Quantum Point Contact ◽  
Out Of Plane ◽  
Quantum Point

scholarly journals Effective Landé factors for an electrostatically defined quantum point contact in silicene

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bartłomiej Rzeszotarski ◽  
Alina Mreńca-Kolasińska ◽  
François M. Peeters ◽  
Bartłomiej Szafran
Keyword(s):  
Magnetic Field ◽  
Point Contact ◽  
Zeeman Splitting ◽  
Orbit Coupling ◽  
Quantum Point Contact ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Quantum Point ◽  
Landé Factors ◽  
Strong Spin

AbstractThe transconductance and effective Landé $$g^*$$ g ∗ factors for a quantum point contact defined in silicene by the electric field of a split gate is investigated. The strong spin–orbit coupling in buckled silicene reduces the $$g^*$$ g ∗ factor for in-plane magnetic field from the nominal value 2 to around 1.2 for the first- to 0.45 for the third conduction subband. However, for perpendicular magnetic field we observe an enhancement of $$g^*$$ g ∗ factors for the first subband to 5.8 in nanoribbon with zigzag and to 2.5 with armchair edge. The main contribution to the Zeeman splitting comes from the intrinsic spin–orbit coupling defined by the Kane–Mele form of interaction.

PHOTON-ASSISTED TRANSPORT CHARACTERISTICS THROUGH QUANTUM DOT COUPLED TO SUPERCONDUCTING RESERVOIRS

NANO ◽  
2006 ◽  
Vol 01 (03) ◽  
pp. 259-264 ◽  
Author(s):  
A. S. ATALLAH ◽  
A. H. PHILLIPS ◽  
A. F. AMIN ◽  
M. A. SEMARY
Keyword(s):  
Magnetic Field ◽  
Numerical Calculation ◽  
Quantum Dot ◽  
Resonant Tunneling ◽  
Andreev Reflection ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Time Varying ◽  
Quantum Point ◽  
Tunneling Behavior

The influence of time-varying fields on the transport through a mesoscopic device has been investigated. This mesoscopic device is modeled as a quantum dot coupled to superconducting reservoirs via quantum point contact. The effect of a magnetic field and the Andreev reflection process were taken into account. The conductance was deduced by using Landuaer–Buttiker equation. A numerical calculation has been performed that shows a resonant tunneling behavior. Such investigation is important for fabricating photoelectron mesoscopic devices.

Resistively detected-NMR in triple-gate quantum point contact: magnetic field dependence

2019 ◽  
Author(s):  
Annisa Noorhidayati ◽  
Mohammad Hamzah Fauzi ◽  
Shunta Maeda ◽  
Ken Sato ◽  
Katsumi Nagase ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Dependence ◽  
Magnetic Field Dependence ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Quantum Point

scholarly journals Quantum point contact in a magnetic field: Far-infrared resonant heating observed in photoconductivity

1999 ◽  
Vol 75 (20) ◽  
pp. 3150-3152 ◽  
Author(s):  
R. J. Heron ◽  
R. A. Lewis ◽  
B. E. Kane ◽  
G. R. Facer ◽  
R. G. Clark ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Point Contact ◽  
Far Infrared ◽  
Quantum Point Contact ◽  
Quantum Point ◽  
Resonant Heating

scholarly journals Conductance quantization and shot noise of a double-layer quantum point contact

2020 ◽  
Vol 101 (11) ◽  
Author(s):  
D. Terasawa ◽  
S. Norimoto ◽  
T. Arakawa ◽  
M. Ferrier ◽  
A. Fukuda ◽  
...  
Keyword(s):  
Double Layer ◽  
Shot Noise ◽  
Point Contact ◽  
Quantum Point Contact ◽  
Conductance Quantization ◽  
Quantum Point
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