Browsing Makale Koleksiyonu by Publisher "IOP PUBLISHING LTD"
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An analysis of E(5) shape phase transitions in Cr isotopes with covariant density functional theory
(IOP PUBLISHING LTD, 2013)Constrained relativistic mean field theory (RMF) has been employed for analysis of the shape phase transitions of even-even Cr52-66 isotopes. The systematic investigation of ground-state shape evolution between spherical ... -
An artificial neural network application on nuclear charge radii
(IOP PUBLISHING LTD, 2013)Artificial neural networks (ANN) have emerged with successful applications in nuclear physics as well as in many fields of science in recent years. In this paper, ANN have been employed on experimental nuclear charge radii. ... -
Binding energy of excitons in symmetric and asymmetric coupled double quantum wells in a uniform magnetic field
(IOP PUBLISHING LTD, 2000)The binding energy of excitons in symmetric and asymmetric coupled double GaAs/Ga1-xAlxAs quantum wells is calculated by using a variational approach. The results have been obtained in the presence of a uniform magnetic ... -
Comprehensive growth and characterization study on highly n-doped InGaAs as a contact layer for quantum cascade laser applications
(IOP PUBLISHING LTD, 2018)We present growth and characterization studies of highly n-doped InGaAs epilayers on InP substrate by metal organic vapor phase epitaxy to use as an n-contact layer in quantum cascade laser applications. We have introduced ... -
Direct Graviton Production via Photon-Photon Fusion at the CERN-LHC
(IOP PUBLISHING LTD, 2012)The potential of pp -> p gamma gamma p -> pGp process in scenarios of the Arkani-Hamed, Dimopoulos, Dvali (ADD) and Randall-Sundrum (RS) model at the LHC is examined, and 95% C.L. bounds on the model parameters are obtained. ... -
Effect of Excited and Fourth Generation Leptons in Lepton Flavor Violating mu(-)-> e(-)2 gamma Decay
(IOP PUBLISHING LTD, 2011)We study the lepton flavor violating mu(-) -> e(-)2 gamma decay induced by the mediation of heavy leptons, such as the excited and fourth generation leptons. Effects of these leptons in mu(-) -> e(-)2 gamma decay are ... -
Effect of hydrostatic pressure on interband transitions in coupled quantum wires
(IOP PUBLISHING LTD, 2007)We calculate the exciton binding energy and interband optical absorption in a rectangular coupled quantum wire under the hydrostatic pressure in the effective-mass approximation, using the variational approach. It is found ... -
The effect of intense laser field on the photoionization cross-section and binding energy of shallow donor impurities in graded quantum-well wire under an electric field
(IOP PUBLISHING LTD, 2006)The laser-field dependence of the impurity binding energy and donor-related photoionization cross-section in graded quantum-well wire under an external static electric field is calculated by a variational method and in the ... -
Effect of Magnetic Field on a p-Type delta-Doped GaAs Layer
(IOP PUBLISHING LTD, 2010)The energy levels of holes in a p-type delta-doped GaAs structure under a magnetic field are theoretically calculated within the framework of the effective mass approximation for a uniform acceptor distribution. The ... -
Effects of an Intense Laser Field and Hydrostatic Pressure on the Intersubband Transitions and Binding Energy of Shallow Donor Impurities in a Quantum Well
(IOP PUBLISHING LTD, 2011)We have calculated the intersubband transitions and the ground-state binding energies of a hydrogenic donor impurity in a quantum well in the presence of a high-frequency laser field and hydrostatic pressure. The calculations ... -
Effects of crossed electric and magnetic fields on shallow donor impurity binding energy in a parabolic quantum well
(IOP PUBLISHING LTD, 2004)We have calculated variationally the ground state binding energy of a hydrogenic donor impurity in a parabolic quantum well in the presence of crossed electric and magnetic fields. These homogeneous crossed fields are such ... -
The effects of two-stage HT-GaN growth with different V/III ratios during 3D-2D transition
(IOP PUBLISHING LTD, 2018)The aim of the study is to understand the effects of two stages of HT-GaN growth with different V/III ratios on optical, chemical and structural characteristics of the HT-GaN layer. In addition, the effects of two-stage ... -
Electric and intense laser field effect on the electronic properties of Ga1-xAlxAs/GaAs and Ga(1-x)ln(x)As/GaAs semi-parabolic quantum wells
(IOP PUBLISHING LTD, 2016)In the present study, the electronic properties of Ga1-xAlxAs/GaAs and Ga(1-x)ln(x)As/GaAs semi-parabolic quantum wells (SPQWs) are theoretically investigated as dependent on the intense laser field (ILF) and the electric ... -
Electric field and intense laser field effects on the intersubband optical absorption in a graded quantum well
(IOP PUBLISHING LTD, 2005)The laser field dependence of the intersubband optical absorption in a graded quantum well (GQW), under an applied electric field is calculated in the effective mass approximation. We have theoretically shown that, in the ... -
Electric field dependence of the excitonic properties in graded double quantum wells
(IOP PUBLISHING LTD, 1999)A quasi-bound state approximation is used to obtain the electric field dependence of the eigenvalues, eigenfunctions, electron-hole overlap integrals and excitonic binding energies for coupled, graded double quantum wells ... -
Electronic energy spectra in a multiple quantum well within external electric and tilted magnetic fields
(IOP PUBLISHING LTD, 2000)The analytical solution of the Schrodinger equation for a multiple-quantum-well system subjected to an externally applied electric field in the growth direction and an externally applied tilted magnetic field are obtained ... -
Electronic properties of p-type delta-doped GaAs structure under electric field
(IOP PUBLISHING LTD, 2008)We theoretically investigate the electronic properties of p-type delta-doped GaAs inserted into a quantum well under the electric field, at T = 0 K. We will investigate the influence of the electric field on the delta-doping ... -
Electronic properties of Si delta-doped GaAs under an applied electric field
(IOP PUBLISHING LTD, 2001)We have theoretically investigated the electronic structure of Si delta -doped GaAs inserted into a quantum well under an applied electric field. For uniform distribution we have studied the influence of the electric field ... -
Fourier transform technique in variational treatment of two-electron parabolic quantum dot
(IOP PUBLISHING LTD, 2009)In this work, we propose an efficient method of reducing the computational effort of variational calculation with a Hylleraas-like trial wavefunction. The method consists of introducing integra transforms for the terms as ... -
The functionality of the external electric and magnetic field on optical specifications of Rosen-Morse quantum well
(IOP PUBLISHING LTD, 2019)In this study, for the first time, we probe the influences of the external electric and magnetic field (EF and MF) on the total refractive index changes (TRICs) and the total absorption coefficients (TACs) of quantum well ...