Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 666, listelenen: 341-360
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Synthesis, crystal structure, spectroscopic studies and Ab-initio calculations on third-order optical nonlinearity of a five-coordinate chloroiron(III) complex
(World Scientific Publ Co Pte Ltd, 2007)A five-coordinate chloroiron(III) complex has been synthesized and characterized by X-ray diffraction analysis and UV-Vis spectroscopy. The maximum one-photon absorption ( OPA) wavelengths recorded by both linear optical ... -
EPR dosimetry intercomparison using smart phone touch screen glass
(Springer, 2014)This paper presents the results of an interlaboratory comparison of retrospective dosimetry using the electron paramagnetic resonance method. The test material used in this exercise was glass coming from the touch screens ... -
Self assembled thin films of poly(methyl methacrylate) for gas sensing
(Amer Scientific Publishers, 2007)Poly(methyl methacrylate) polymer is selected to produce a self assembled thin film onto a quartz crystal using self assembly deposition technique. The deposition of this poly(methyl methacrylate) film layer is characterized ... -
Electrical properties of a novel 1,3-bis-(p-iminobenzoic acid) indane langmuir-blodgett films containing ZnS nanoparticles
(Amer Scientific Publishers, 2007)ZnS nanoparticles have been formed in a newly synthesized 1,3-bis-(p-iminobenzoic acid) indane (IBI) by exposing Zn2+ doped multilayered Langmuir-Blodgett (LB) film to H2S gas after the growth. The formation of ZnS ... -
The role of stellar envelope convection in gravity-darkening and its relation to observational data
(Elsevier Science Bv, 2007)We study the role of convection in the surface heat flow of low mass stellar envelopes with the aid of Paczynski's public domain program program GOB. This role is important, for example, for the analysis of light curves ... -
Surface resonance transition of roughened Cu(110)
(Elsevier Science Bv, 2007)The temperature dependence of the reflection anisotropy spectroscopy (RAS) of a Cu(1 1 0) surface has been studied over the temperature range 700-1000 K. Because of the roughening transition at 900 K, the bimodal feature ... -
Scattering analysis of 2DEG carrier extracted by QMSA in undoped Al0.25Ga0.75N/GaN heterostructures
(Iop Publishing Ltd, 2007)Hall effect measurements on undoped Al0.25Ga0.75N/GaN heterostructures grown by a metalorganic chemical vapour deposition (MOCVD) technique have been carried out as a function of temperature (20-350 K) and magnetic field ... -
The analysis of scattering mechanisms in GaN by relaxation time approximation and the comparison by the transport to quantum scattering time ratios
(Edp Sciences S A, 2007)The effects of conventional scattering mechanisms on the electron Hall mobility in GaN are calculated and analysed. The ratios of the transport to quantum scattering time are also calculated and the ratio is evaluated in ... -
Effect of molecular and electronic structure on the light-harvesting properties of dye sensitizers
(Amer Chemical Soc, 2007)The systematic trends in structural and electronic properties of perylenediimide (PDI)-derived dye molecules have been investigated by DFT calculations based on the projector-augmented wave (PAW) method including ... -
A novel hydrogen-bonded zigzag chain manganese(III) complex: Synthesis, crystal structure and magnetic properties
(Verlag Z Naturforsch, 2007)The synthesis, crystal structure and magnetic properties of [Mn(III)L(H2O)(2)]+ClO4-, 1 [L = N,N'-bis(rac-3,5-dichlorosalicylidenato)-1,2-diaminopropane] are reported. Single crystal X-ray diffraction studies showed the ... -
Electronic structures and optical spectra of thin anatase TiO2 nanowires through hybrid density functional and quasiparticle calculations
(Amer Physical Soc, 2014)The electronic properties of quasi-one-dimensional anatase TiO2 nanostructures, in the form of thin nanowires having (101) and (001) facets, have been systematically investigated using the standard, hybrid density functional ... -
Electrodeposited NiCoFe films from electrolytes with different Fe ion concentrations
(Elsevier Science Bv, 2014)Ternary NiCoFe films, relating their magnetic and magnetoresistance properties with film composition, and the corresponding crystal structure were investigated in terms of different Fe ion concentrations in the electrolyte. ... -
Atomic and electronic structure of Sr/Si(001)-(2 x 2)
(Elsevier Science Bv, 2006)The adsorption of Sr on the Si(001) surface with the semiantiphase dimer (2 x 2) reconstruction is studied, based upon the ab initio pseudopotential calculations. It is calculated that the sermantiphase dimer (2 x 2) ... -
Electrical characterisation of stearic acid/eicosylamine alternate layer Langmuir–Blodgett films incorporating CdS nanoparticles
(Elsevier Science Sa, 2007)Electrical properties of stearic acid/eicosylamine alternate layer Langmuir–Blodgett (LB) film structure incorporating cadmium sulphide (CdS) nanoparticles are studied in the temperature range 300–400 K. The room temperature ... -
Magnetic anisotropy and its thickness dependence for NiFe alloy films electrodeposited on polycrystalline Cu substrates
(Elsevier Science Bv, 2006)The thickness dependence of magnetic properties of NiFe alloys electrodeposited on polycrystalline copper substrates has been investigated. In order to see how the film thickness affects their properties, the films with ... -
Parameters affecting microstructure and magnetoresistance of electrodeposited Co-Cu alloy films
(Elsevier Science Bv, 2006)Co-Cu alloy films were electrodeposited on polycrystalline Ti substrates under potentiostatic deposition conditions. The crystal structures of the films were studied using X-ray diffraction (XRD). The XRD analysis revealed ... -
Swelling behavior of pyrene-labelled polystyrene LB thin film exposed to various volatile organic vapors
(Elsevier Science Sa, 2014)In this work thin films of pyrene-labelled polystyrene (PS) prepared Langmuir-Blodgett (LB) film technique are characterized by UV-visible spectroscopy, Atomic Force Microscopy (AFM) and Surface Plasmon Resonance (SPR). ... -
Use of triethylene glycol monobutyl ether in synthesis of iron oxide nanoparticles
(Elsevier Science Bv, 2014)Superparamagnetic iron oxide nanoparticles were synthesized by thermal decomposition of iron-oleate complex using triethylene glycol monobutyl ether (TREGBE) as solvent for the first time for more mass of the nanoparticles. ... -
Pyroelectric and dielectric characterisation of alternate layer Langmuir-Blodgett films incorporating ions
(Elsevier Science Bv, 2007)Non-centrosymmetric Langmuir-Blodgett (LB) thin films exhibit a temperature-dependent electric polarisation, which is known as the pyroelectric effect. Alternate layer LB films were prepared by transferring polysiloxane ... -
Epr investigation of thermal decay of radiation-induced species of benzoic acid and its sodium and potassium salts
(Springer, 2015)The structural and kinetic features of the radiation-induced radicals of benzoic acid and its sodium and potassium salts were investigated using electron paramagnetic resonance (EPR) spectroscopy. Two main different radicals ...
