A5071761753- Semiconductor Quantum Structures and Devices
- Quantum and electron transport phenomena
- Quantum, superfluid, helium dynamics
- Cold Atom Physics and Bose-Einstein Condensates
- Nuclear physics research studies
- Mathematical functions and polynomials
- Advancements in Battery Materials
- Semiconductor Lasers and Optical Devices
- Advanced Battery Materials and Technologies
- Advanced Mathematical Identities
- Advanced Physical and Chemical Molecular Interactions
- Nuclear Physics and Applications
- Quantum Dots Synthesis And Properties
- Strong Light-Matter Interactions
- High-Energy Particle Collisions Research
- Quantum Information and Cryptography
- Molecular Junctions and Nanostructures
- Spectroscopy and Quantum Chemical Studies
- Advanced Semiconductor Detectors and Materials
- Advanced Thermodynamics and Statistical Mechanics
- Pulsars and Gravitational Waves Research
- Semiconductor materials and interfaces
- Nuclear reactor physics and engineering
- Integrated Circuits and Semiconductor Failure Analysis
- Astronomical and nuclear sciences
Selçuk University
2010-2024
The N/Z dependence of projectile fragmentation at relativistic energies has been studied with the ALADIN forward spectrometer GSI Schwerionen Synchrotron (SIS). Stable and radioactive Sn La beams an incident energy 600 MeV per nucleon have used in order to explore a wide range isotopic compositions. For interpretation data, calculations statistical multifragmentation model for properly chosen ensemble excited sources were performed. parameters ensemble, representing variety spectator nuclei...
This research is focused on determining the dose rate calibration of beta irradiation source in Risø brand TL/OSL-DA-20 model thermoluminescence (TL) and optically stimulated luminescence (OSL) reader device manufactured by DTU Physics which an integral component Technical University Denmark (DTU). The radiation this comprises a pellet-shaped Strontium ceramic made from 90Sr/90Y radionuclide, with half-life approximately 29.1 years. investigation provides thorough examination reproducing...
The electronic structure of Quantum Dot (QD), GaAs/Al x Ga 1-x As , has been investigated by using a combination Genetic Algorithm (QGA) and Hartree–Fock–Roothaan (HFR) method. One-electron system with an on-center impurity is considered assuming spherically symmetric confining potential finite depth. ground excited state energies one-electron QD were calculated depending on the dot radius stoichiometric ratio. Expectation values energy determined HFR method along Slater-Type Orbitals (STOs)...
In this study, electronic properties of a low-dimensional quantum mechanical structure have been investigated by using Genetic Algorithm (GA). One- and two-electron Quantum Dot (QD) systems with an on-center impurity are considerable assuming the confining potential to be infinitely deep spherically symmetric. Linear combinations Slater-Type Orbitals (STOs) were used for description single electron wave functions. The parameters function system as individuals in generation, corresponding...
In this study, we have investigated the electronic and intersubband optical properties of AlxGa1−xAs/Al0.3Ga0.7As/AlyGa1−yAs/Al0.3Ga0.7As multi-shell quantum dot heterostructures as a function Al doping concentrations in both core (x) well (y) regions for cases with without hydrogenic donor impurity. Our results reveal how resonant absorption wavelengths coefficient strengths are changed by variation content regions. Besides this, structure affected existence impurity has also been shown....
Analytical expressions through the binomial coefficients and recursive relations are derived for expansion of overlap integrals in terms a product well-known auxiliary functions Ak Bk. These formulas especially useful calculation large quantum numbers. Accuracy computer results is satisfactory values numbers up to 50 arbitrary screening constants atomic orbitals internuclear distances. © 1998 John Wiley & Sons, Inc. Int J Quant Chem 67: 199–204,
Zhang and Xie [Phys. Rev. B 68, 235315 (2003)] presented their results for the second harmonic generation (SHG) susceptibility in electric-field-biased parabolic semiparabolic quantum wells (QW's). In this Comment, we demonstrate that SHG coefficient a QW with an applied electric field are not physically sound they contradict well-established properties of Hermite polynomials which just happen to be wave functions describing such system. It is shown intersubband transitions contribute...
A method for extracting the bias dependent behaviour of series resistance a Schottky barrier diode from experimental I-V data is presented. It was assumed that well defined by thermionic emission theory. Relative merit determined applying on some artificial sets corresponding to known values resistances and comparing results with existing methods.
In this study, we have calculated energy levels of an N-electron quantum dot. For purpose, used two different techniques, matrix diagonalization and genetic algorithm, to obtain simultaneous solutions the coupled Schrödinger Poisson equation in Hartree approximation. We determined single particle levels, total energy, chemical potential capacitive energy. also compared results, demonstrated applicability QGA many-electron systems evaluated its effectiveness.
Abstract A formulation previously presented by the authors for coulomb integrals was generalized to other two‐center integrals, except exchange integral. Within this frame, molecular were expressed in terms of some new functions closely related well‐known incomplete gamma and these recursively evaluated. Special issues arising case hybrid addressed, results compared with ones found literature.
The possibilities of modifications for symmetry and surface energy coefficients nuclear matter at freeze-out density are investigated theoretically by means isoscaling (isotopic scaling) on the basis a statistical multifragmentation model. It is seen that while parameters as predicted Markov chain calculations single sources 124Sn 112Sn very sensitive to term, variation slightly affects in region. influence these changes mean neutron proton ratios light fragments 2 ⩽ Z 10 also shown....
Abstract A general analytic formula is obtained for the two‐center Coulomb integrals over Slater‐type orbitals in elliptical coordinates. Finite series expansions are used evaluation of radial part integrals. The expressed terms a product well‐known auxiliary functions k ( p ) and B incomplete gamma functions. Recursive relations computer these given as well. recursive stable our results good agreement with benchmark values literature. © 2002 Wiley Periodicals, Inc. Int J Quantum Chem, 2003
Garnet-type solid-state electrolytes are promising candidates for lithium batteries, nevertheless their ionic conductivity is still not enough commercial applications. On the other hand, doping common way to improve conductivities of these solid electrolytes. In this study, mono and dual-doped garnet-type were synthesised by substituting indium (In), gallium (Ga), indium-titanium (In-Ti) gallium-titanium (Ga-Ti) Li7La3Zr2O12 structure a reaction method. The contribution substitutions...
Abstract A Variational Monte Carlo (VMC) method is employed to investigate the properties of symmetric and asymmetric nuclear matter. The realistic Urbana V 14 twonucleon interaction potential Lagaris Pandharipande was used describe microscopic interactions. Also, many body interactions are included as a density dependent term in potential. Total kinetic energies per particle calculated for matter by VMC at various densities isospin asymmetry parameters. results compared with data found...
Abstract In this study, a theoretical investigation of intersubband nonlinear optical rectification in Al x lGa 1– lAs/ GaAs/Al rGa rAs asymmetric rectangular quantum wells is presented. The electronic states the well are described within framework envelope function approach including effects band nonparabolicity and effective mass mismatch. calculated using density matrix formalism. It found that depends sensitively on parameters such as width asymmetry potential well. adjustable allow for...