Güncel Gönderiler: Fizik Bölümü
Toplam kayıt 667, listelenen: 601-620
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Magnetic properties of dc magnetron sputtered and evaporated amorphous films
(Springer, 2002)Compositions. of Fe81B13.5Si3.5C2, Fe67Co18Si1B14 and Fe5.85Co72.15Mo2B15Si5 were deposited on to rigid and flexible substrates for the first time using a dc sputtering source as part of a novel Rotating Cryostat (RC). The ... -
Impact of deposition rate on the structural and magnetic properties of sputtered ni/cu multilayer thin films
(Walter De Gruyter Gmbh, 2018)The structural and corresponding magnetic properties of Ni/Cu films sputtered at low and high deposition rates were investigated as there is a limited number of related studies in this field. 5[Ni(10 nm)/Cu(30 nm)] multilayer ... -
Energy and momentum relaxation of hot electrons in GaN/AlGaN
(IOP Publishing Ltd, 2002)We report the experimental studies of hot-electron energy and momentum relaxation in the steady state in GaN/AlGaN HEMT structures with a high two-dimensional electron density of n = 1.5 x 10(13) cm(-2). From the ... -
The rotation and clamping effect on the magnetic properties of iron films deposited onto a rotating substrate
(Elsevier Science Bv, 2002)We have investigated the effect of fabrication conditions on the magnetic anisotropy of iron films produced by a novel rotating cryostat (RC) system. Clamped films exhibited uniaxial in-plane anisotropy with the easy axis ... -
Monte Carlo simulation of kilovolt positron penetration and backscattering probabilities in solids
(Elsevier Science Bv, 2002)Monte Carlo simulations of the backscattering probabilities, mean penetration depths and implantation profiles of positrons for elemental solids are reported as a function of atomic number 4 less than or equal to Z less ... -
A theoretical model for the pyroelectric response in Langmuir-Blodgett films
(Elsevier Science Bv, 2002)Understanding the structure of pyroelectric materials is important to elucidate the nature of the temperature-dependent microscopic and macroscopic electric polarisation. Pyroelectric materials must have a non-centrosymmetric ... -
Optical and vapor sensing properties of calix[4]arene langmuir-blodgett thin films with host-guest principles
(Taylor & Francis Inc, 2018)25,27-(Dipropylmorpholinoacetamido)-26,28-dihydroxycalix[4]arene was used as a chemical sensor material in this work. The calix[4]arene LB thin films were prepared onto a gold-coated glass and quartz glass substrates to ... -
Understanding the gas adsorption kinetics of Langmuir-Schaefer porphyrin films using two comparative sensing systems
(Elsevier Science Sa., 2018)This study investigated Langmuir-Schaefer (LS) films of a free base porphyrin 5,10,15,20-tetrakis[ 3,4-bis(2-ethylhexyloxy) phenyl]-21H, 23H-porphine (EHO) as sensors to detect acetic acid and methylamine. Such films are ... -
Role of electronegative atom present on ligand backbone and substrate binding mode on catecholase- and phosphatase-like activities of dinuclear ni-ıı complexes: a theoretical support
(Wiley-V C H Verlag GMBH, 2018)The reaction of two pentadentate compartmental ligands HL1 and HL2 [HL1 = 2,6-bis((E)-(2-morpholinoethylimino)methyl)-4-tert-butylphenol; HL2 = 2,6-bis((E)-(2-(piperidin-1-yl)ethylimino)methyl)-4-tert-butylphenol] with ... -
New mixed valence defect dicubane cobalt(ıı)/cobalt(ııı) complex: synthesis, crystal structure, photoluminescence and magnetic properties
(Elsevier Science BV, 2018)A new defect dicubane cobalt(II)/cobalt(III), [(Co(2)(II)Co(2)(III)L(4)2(H2O)(CH3COO)(CH3COOH]center dot 4H(2)O complex (1) where H2L = [1-(3-hydroxypropyliminomethyl)naphthalene-2-ol], has been synthesized and characterized ... -
Catena-poly[[[2,4-dichloro-6-{[(2-hydroxyethyl)imino]methyl}phenolato-n-3,o,o']-copper(ıı)]--chlorido]monohydrate]: synthesis, structural, spectroscopic and luminescent properties
(Taylor & Francis Ltd, 2018)A new chloride bridged polymeric Cu(II) complex, [Cu(HL)(-Cl).H2O](n), 1, (H2L = 2,4-dichloro-6-{[(2-hydroxyethyl)imino]methyl}phenol) has been synthesized and characterized by elemental-spectral analysis, crystal structure ... -
Electrochemical, structural and magnetic analysis of electrodeposited cocu/cu multilayers: influence of cu layer deposition potential
(Springer, 2018)The electrochemical, structural and magnetic properties of CoCu/Cu multilayers electrodeposited at different cathode potentials were investigated from a single bath. The Cu layer deposition potentials were selected as , ... -
Novel debittering process of green table olives: application of -glucosidase bound onto superparamagnetic nanoparticles
(Taylor & Francis Ltd, 2018)In this work, the olive -glucosidase (-glu) enzyme was immobilized onto superparamagnetic nanoparticles (SPMNs). Moreover, immobilized enzyme was also used for the debittering process for natural edible olives from Edremit, ... -
Thin film properties and the detection volatile organic compounds of c-methylcalix(4)resorcinarene
(Amer Inst Physics, 2018)C-Methylcalix(4) resorcinarene (CM4RA) molecule fabricated as a thin film using spin coating method was studied for an application as a sensing membrane for the detection of volatile organic compounds. The optical properties ... -
Energy distributions of multiple backscattered photons in materials
(Springer Singapore Pte Ltd, 2018)Backscattering of gamma photons from a material is of fundamental importance in radiation shielding, industrial and medical applications, radiation dosimetry, and non-destructive testing. In Compton scattering, incident ... -
Fractal size, occupied fraction study with annealing of heterostructure based alxga1-xn
(Springer, 2018)In this study, numerical analysis of temperature variation for surface structure in AlxGa1-xN thin film grown by metal organic chemical vapour deposition has been performed. Numerical studies were carried out over morphologic ... -
Electrochemical deposition of cocu/cu multilayers: structural and magnetic properties as a function of non-magnetic layer thickness
(Walter De Gruyter GMBH, 2018)Electrochemical deposition of CoCu/Cu multilayers was performed on titanium substrates from a single bath as a function of the Cu layer thicknesses. The deposition potentials were selected as -1.5 V for the magnetic layers ... -
Range-separated hybrid exchange-correlation functional analyses of anatase TiO2 doped with W, N, S, W/N, or W/S
(Amer Physical Soc, 2012)The electronic properties and atomic structures of W, N, S, W/N, and W/S dopings of anatase TiO2 have been systematically investigated using the density functional theory. The exchange and correlation effects have been ... -
Structure coefficients for use in stellar analysis
(Springer, 2012)We present new values of the structural coefficients eta (j) , and related quantities, for realistic models of distorted stars in close binary systems. Our procedure involves numerical integration of Radau's equation for ... -
Magnetic characterizations of cobalt oxide nanoparticles
(Springer, 2012)Cobalt oxide (Co3O4) nanoparticles were synthesized by a novel microwave-assisted decomposition reaction of the cobalt nitrate hexahydrate, Co(NO3)(2)a <...6H(2)O. While most of the traditional methods for the preparation ...
