Tunable electronic transport and unidirectional quantum wires in graphene subjected to electric and magnetic fields

2010 ◽  
Vol 81 (7) ◽  
Author(s):  
Yury P. Bliokh ◽  
Valentin Freilikher ◽  
Franco Nori
Keyword(s):  
Magnetic Fields ◽  
Electronic Transport ◽  
Quantum Wires ◽  
Electric And Magnetic Fields

PHONON CONFINEMENT EFFECT ON THE BINDING ENERGY OF A HYDROGENIC IMPURITY IN QUANTUM WIRES IN THE ELECTRIC AND MAGNETIC FIELDS

2012 ◽  
Vol 15 ◽  
pp. 184-190
Author(s):  
ABBAS SHAHBANDARI
Keyword(s):  
Binding Energy ◽  
Magnetic Fields ◽  
Quantum Wires ◽  
Polar Optical Phonon ◽  
Phonon Confinement ◽  
Hydrogenic Impurity ◽  
Bound Polaron ◽  
Electric And Magnetic Fields ◽  
Applied Fields ◽  
Variation Technique

The effect of phonon confinement on ground state binding energy of bound polaron in polar quantum wires with a finite confining potential investigated by Landau-Pekar variation technique. The effect of external electric and magnetic fields is taken into account as well. The obtained results show that the polar optical phonon confinement leads to a considerable enhancement of the polaron effect and these corrections increase with increasing of applied fields.

scholarly journals Влияние электрического и магнитного полей на межзонную люминесценцию в полупроводниковых квантовых проволоках

2019 ◽  
Vol 127 (11) ◽  
pp. 828
Author(s):  
Э.П. Синявский ◽  
Н.С. Костюкевич
Keyword(s):  
Magnetic Fields ◽  
Luminescence Intensity ◽  
Potential Model ◽  
Quantum Wires ◽  
Acoustic Vibrations ◽  
Comparison With Experiment ◽  
Parabolic Potential ◽  
Long Wave ◽  
Electric And Magnetic Fields ◽  
Frequency Dependences

We theoretically investigated interband optical transitions in quantum wires in a parabolic potential model in electric and magnetic fields directed perpendicular to the axis of the nanowire. The frequency dependences of the light luminescence intensity are calculated taking into account the interaction of carriers with a rough surface and with long-wave acoustic vibrations. We obtained graphs of the frequency dependence of the luminescence intensity for various values ​​of the electric and magnetic fields, the dependence of the half-width of luminescence on the radius of the wire, and we also made a comparison with experiment.

Electronic transport in quantum wires in nonuniform magnetic fields

1996 ◽  
Vol 54 (11) ◽  
pp. 8044-8048 ◽  
Author(s):  
Zhen-Li Ji ◽  
D. W. L. Sprung
Keyword(s):  
Magnetic Fields ◽  
Electronic Transport ◽  
Quantum Wires

scholarly journals Оптические свойства легированных нанопроволок во внешних электрическом и магнитном поляx

2020 ◽  
Vol 128 (11) ◽  
pp. 1752
Author(s):  
Э.П. Синявский ◽  
С.М. Соковнич
Keyword(s):  
Magnetic Fields ◽  
Absorption Coefficient ◽  
Light Absorption ◽  
Quantum Wires ◽  
Impurity Absorption ◽  
Light Absorption Coefficient ◽  
Electric And Magnetic Fields ◽  
Absorption Of Light ◽  
Zero Range ◽  
Frequency Dependences

The impurity absorption of light in quantum wires in the presence of external electric and magnetic fields directed parallel to each other and perpendicular to the axis of the nanowire is studied theoretically. Impurities doped in a quantum wire are modeled by a zero-range potential. Expressions are obtained for the light absorption coefficient and the features of impurity absorption of light are studied for all possible directions of polarization of the light wave. In particular, in the presence of external fields, some optical transitions, which are forbidden in the absence of fields, become allowed. The frequency dependences of the light absorption coefficient and the influence of electric and magnetic fields on the value of the impurity light absorption coefficient are investigated. The possibility of controlling the optical characteristics of nanowires using an electric field is shown.

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