Majorana Zero-Energy Modes in a Magnetic Field-Free Quantum Wire

2020 ◽  
pp. 325-337
Author(s):  
Mariana Malard
Keyword(s):  
Magnetic Field ◽  
Quantum Wire ◽  
Zero Energy

scholarly journals RESONANT RAMAN SCATTERING OF QUANTUM WIRE IN STRONG MAGNETIC FIELD

1999 ◽  
Vol 13 (17) ◽  
pp. 2275-2283 ◽  
Author(s):  
HYUN C. LEE
Keyword(s):  
Magnetic Field ◽  
Raman Scattering ◽  
Strong Magnetic Field ◽  
Coulomb Interaction ◽  
Quantum Wire ◽  
Spin Excitation ◽  
Momentum Dependence ◽  
Near Resonance ◽  
Resonant Raman ◽  
Resonant Raman Scattering

The resonant Raman scattering of a quantum wire in a strong magnetic field is studied, focused on the effect of long range Coulomb interaction and the spin–charge separation. The energy–momentum dispersions of charge and spin excitation obtained from Raman cross-section show the characteristc cross-over behaviour induced by inter-edge Coulomb interaction. The "SPE" peak near resonance in polarized spectra becomes broad due to the momentum dependence of charge velocity. The broad peak in the depolarized spectra is shown to originate from the disparity between charge and spin excitation velocity.

scholarly journals Electronic Properties of Twisted Bilayer Graphene in the Presence of a Magnetic Field

2020 ◽  
Vol 233 ◽  
pp. 03004
Author(s):  
M.F.C. Martins Quintela ◽  
J.C.C. Guerra ◽  
S.M. João
Keyword(s):  
Magnetic Field ◽  
Electronic Properties ◽  
Twist Angle ◽  
Bilayer Graphene ◽  
Polynomial Method ◽  
Zero Energy ◽  
Energy Bands ◽  
Optical And Electronic Properties ◽  
Twisted Bilayer Graphene ◽  
Kernel Polynomial Method

In AA-stacked twisted bilayer graphene, the lower energy bands become completely flat when the twist angle passes through certain specific values: the so-called “magic angles”. The Dirac peak appears at zero energy due to the flattening of these bands when the twist angle is sufficiently small [1-3]. When a constant perpendicular magnetic field is applied, Landau levels start appearing as expected [5]. We used the Kernel Polynomial Method (KPM) [6] as implemented in KITE [7] to study the optical and electronic properties of these systems. The aim of this work is to analyze how the features of these quantities change with the twist angle in the presence of an uniform magnetic field.

scholarly journals Zero-Energy State in Graphene in a High Magnetic Field

2008 ◽  
Vol 100 (20) ◽  
Author(s):  
Joseph G. Checkelsky ◽  
Lu Li ◽  
N. P. Ong
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Energy State ◽  
Zero Energy

scholarly journals Magnetic field independent shape of the zero-energy landau levels in a disordered T 3 model

2019 ◽  
Vol 21 (7) ◽  
pp. 073013
Author(s):  
Zhi Yang ◽  
Weiwei Chen ◽  
Qunxiang Li ◽  
Q W Shi
Keyword(s):  
Magnetic Field ◽  
Landau Levels ◽  
Zero Energy ◽  
Field Independent
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