scholarly journals Aharonov-Bohm oscillations and electron gas transitions in hexagonal core-shell nanowires with an axial magnetic field

2015 ◽  
Vol 91 (11) ◽  
Author(s):  
Miquel Royo ◽  
Carlos Segarra ◽  
Andrea Bertoni ◽  
Guido Goldoni ◽  
Josep Planelles
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Electron Gas ◽  
Core Shell ◽  
Aharonov Bohm ◽  
Shell Nanowires

scholarly journals Terahertz emission from GaAs-AlGaAs core-shell nanowires on Si (100) substrate: Effects of applied magnetic field and excitation wavelength

2013 ◽  
Vol 102 (6) ◽  
pp. 063101 ◽  
Author(s):  
Jasher John Ibanes ◽  
Ma. Herminia Balgos ◽  
Rafael Jaculbia ◽  
Arnel Salvador ◽  
Armando Somintac ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Applied Magnetic Field ◽  
Excitation Wavelength ◽  
Core Shell ◽  
Terahertz Emission ◽  
Substrate Effects ◽  
Shell Nanowires

scholarly journals Robust topological phase in proximitized core–shell nanowires coupled to multiple superconductors

2018 ◽  
Vol 9 ◽  
pp. 1512-1526 ◽  
Author(s):  
Tudor D Stanescu ◽  
Anna Sitek ◽  
Andrei Manolescu
Keyword(s):  
Magnetic Field ◽  
Longitudinal Magnetic Field ◽  
Tight Binding ◽  
Core Shell ◽  
Topological Phase ◽  
Binding Model ◽  
Chemical Potentials ◽  
Topological Quantum ◽  
The Stability ◽  
Shell Nanowires

We consider core–shell nanowires with prismatic geometry contacted with two or more superconductors in the presence of a magnetic field applied parallel to the wire. In this geometry, the lowest energy states are localized on the outer edges of the shell, which strongly inhibits the orbital effects of the longitudinal magnetic field that are detrimental to Majorana physics. Using a tight-binding model of coupled parallel chains, we calculate the topological phase diagram of the hybrid system in the presence of non-vanishing transverse potentials and finite relative phases between the parent superconductors. We show that having finite relative phases strongly enhances the stability of the induced topological superconductivity over a significant range of chemical potentials and reduces the value of the critical field associated with the topological quantum phase transition.

scholarly journals Electron Gas Dynamic Conductivity Tensor on the Nanotube Surface in Magnetic Field

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
A. M. Ermolaev ◽  
S. V. Kofanov ◽  
G. I. Rashba
Keyword(s):  
Magnetic Field ◽  
Longitudinal Magnetic Field ◽  
Electron Gas ◽  
Conductivity Tensor ◽  
High Electron ◽  
Kubo Formula ◽  
Dynamic Conductivity ◽  
Time Dispersion ◽  
Density Of Electrons ◽  
Aharonov Bohm

Kubo formula was derived for the electron gas conductivity tensor on the nanotube surface in longitudinal magnetic field considering spatial and time dispersion. Components of the degenerate and nondegenerate electron gas conductivity tensor were calculated. The study has showed that under high electron density, the conductivity undergoes oscillations of de Haas-van Alphen and Aharonov-Bohm types with the density of electrons and magnetic field changes.

Magnetic field induced mixing of light hole excitonic states in (Cd, Mn)Te/(Cd, Mg)Te core/shell nanowires

2018 ◽  
Vol 29 (20) ◽  
pp. 205205 ◽  
Author(s):  
Jakub Płachta ◽  
Emma Grodzicka ◽  
Anna Kaleta ◽  
Sławomir Kret ◽  
Lech T Baczewski ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Light Hole ◽  
Core Shell ◽  
Excitonic States ◽  
Shell Nanowires

Excitonic Aharonov–Bohm Oscillations in Core–Shell Nanowires

2018 ◽  
Vol 31 (3) ◽  
pp. 1805645 ◽  
Author(s):  
Pierre Corfdir ◽  
Oliver Marquardt ◽  
Ryan B. Lewis ◽  
Chiara Sinito ◽  
Manfred Ramsteiner ◽  
...  
Keyword(s):  
Core Shell ◽  
Aharonov Bohm ◽  
Shell Nanowires
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