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Dirac Sextic Oscillator in the Constant Magnetic Field
Dirac sextic oscillator quasi-exactly solvable systems
2010/4/12
We introduce a Dirac equation which reproduces the usual radial sextic oscillator potential in the non-relativistic limit. We determine its energy spectrum in the presence of the magnetic field. It is...
Ion Flux Transmission Along an Insulating Duct with an Axial Magnetic Field
Ion Flux Transmission an Insulating Duct an Axial Magnetic Field
2010/10/26
An experimental study of the metallic ion flux in a pulsed copper vacuum arc with an annular anode and operated with an axial magnetic field is presented. It is employed an insulating drift duct surro...
Longitudinal Magnetic Field Effect on the Electrical Breakdown in Low Pressure Gases
Longitudinal Magnetic Field Effect the Electrical Breakdown Low Pressure Gases
2010/10/27
The electrical breakdown has been investigated for low-pressure argon and nitrogen discharges under the influence of an external longitudinal magnetic field. Plane-parallel aluminum electrodes (5 cm d...
Small Scale Magnetic Field Evolution In The First Objects Formed In The Universe
Small Scale Magnetic Field Evolution The First Objects In The Universe
2010/10/27
Large scale magnetic fields in galaxies are thought to be generated, by a mean field dynamo. In order to have generated the fields observed, the dynamo would have had to have operated for a sufficient...
On the Onsager Symmetry of the Effective Dielectric Tensor for Plasmas in Inhomogeneous Magnetic Field
the Onsager Symmetry the Effective Dielectric Tensor Plasmas Inhomogeneous Magnetic Field
2010/10/27
The preservation of Onsager symmetry for the effective dielectric tensor is discussed for a homogeneous plasma immersed in a inhomogeneous magnetic field, using the unperturbed orbits correct up to or...
Influence of a Magnetic Field on the Energy Flow of Surface Polaritons Propagating in Semiconductor Cylinders
a Magnetic Field Surface Polaritons Semiconductor Cylinders
2010/10/22
This work reports the influence of a dc external magnetic field on the polaritons propagating in cylindrical systems. We present numerical results for the dispersion relation and energy flow for surfa...
Magnetic Field Induced Absorption in PbxEu1-xTe Magnetic Semiconductors
Magnetic Field Absorption PbxEu1-xTe Magnetic Semiconductors
2010/10/22
We report an investigation of the optical absorption spectrum, using non-polarized light, in PbxEu1¡xTe, x=0 and x=0.095, epitaxial thick layers grown by molecular beam epitaxy (MBE). The absorp...
Electronic Properties of Coupled Quantum Rings in the Presence of a Magnetic Field
Electronic Properties Coupled Quantum Rings a Magnetic Field
2010/10/22
We have studied the energy spectrum of a system formed by two concentric, coupled, semiconductor quantum rings. We have investigated the effect of a uniform magnetic field applied along the rings axis...
Franz-Keldysh Effect in Semiconductor T-Wire in Applied Magnetic Field
Franz-Keldysh Effect Semiconductor T-Wire Applied Magnetic Field
2010/10/22
We have calculated the optical absorption spectra of magnetoexcitons in T-wire semiconductor. It is calculated using the semiconductor Bloch equations in time and real-space domains. The peak and the ...
Electric and Magnetic Field Effects on Electronic Structure of Straight and Toroidal Carbon Nanotubes
Electric and Magnetic Field Effects Electronic Structure Straight and Toroidal Carbon Nanotubes
2010/10/22
Nanotubes have been proved as promising candidates for many technological applications in the nanoscale word and different physical properties have been studied and measured along the few recent years...
Variation of Chemical Potential Oscillations of a 2DEG in a Quantum Well Under a Magnetic Field for Multiple Sub-Band Occupation as Function of Temperature and Level-Broadening
Chemical potential level-broadening quantum well Poisson-Schrö dinger solution
2010/4/12
We study the variation of chemical potential in a two dimensional electron gas in a uniform magnetic field as a function of temperature and level-broadening parameter. Schrödinger and Poisson equ...
Field and Polarization Effects Arising in Neutrino-Lepton Processes in a Magnetic Field
Polarization Effects Magnetic Field Neutrino-Lepton Processes
2010/4/15
We discuss the effects arising in the neutrino-lepton processes (nm+e- \rightarrow ne+m- and \overline{n}e+e-\rightarrow\overline{n}m+m-) in a constant uniform magnetic field in the framework of the W...
Electronic Energy Spectrum in a DQWS Within a Tilted Magnetic Field
Electronic Energy Spectrum Tilted Magnetic Field
2010/4/16
The analytical solution of the Schrödinger equation for a DQWS subjected to an externally applied tilted magnetic field are obtained and the results are discussed. The dependency of energy spectr...
Binding Energies of Excitons in Symmetric and Asymmetric Coupled Double-Quantum Well Structures in a Magnetic Field
Binding Energies Double-Quantum Well Structures Magnetic Field
2010/4/16
The binding energy of excitons in the symmetric and asymmetric coupled double GaAs/Ga1-xAlxAs quantum wells is calculated by using variational approach. Results have been obtained as a function of the...
Interference of charged particles in a vector potential with vanishing magnetic field
vector potential vanishing magnetic field
2010/4/15
An interference experiment in a magnetic field free region with non vanishing vector potential created by two perpendicularly intersecting planes carrying uniform currents is discussed. The relation o...