Издательство Taylor&Francis по журналам "Philosophical Magazine Part B"
Отображаемые элементы 1-20 из 2802
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(Taylor & Francis Group, 1996-04-01)We have measured conductance fluctuations in n-type hydrogenated amorphous silicon using current densities J in the range 0·1 < J < 0·55 A cm−2 at various temperatures from 13°C to 170°C. The noise power density varies as ...
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(Taylor & Francis Group, 1986-04-01)A preliminary investigation, using 29Si magic-angle spinning nuclear magnetic resonance spectroscopy (MAS NMR), of the effect of water content on the spinlattice relaxation time, T1, and Si‒O‒Si bond-angle distribution of ...
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(Taylor & Francis Group, 1980-01-01)The Hall coefficient and resistivity of the first-row transition-metal intercalates, M1/3TaS2 (M = V, Cr, Mn, Fe, Co, Ni), Mnl/4TaS2, M1/3NbS2 (M = V, Cr) and Fel/4NbSe2 have been measured as a function of temperature. ...
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3d transition-metal intercalates of the niobium and tantalum dichalcogenides. I. Magnetic properties(Taylor & Francis Group, 1980-01-01)The magnetic susceptibilities, parallel and perpendicular to the layers of the first-row transition-metal intercalates, M1/3TaS2 (M = V, Cr, Mn, Fe, Co, Ni), Mn1/4TaS2, M1/3NbS2 (M = V, Cr) and Fe1/4NbSe2, have been measured ...
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(Taylor & Francis Group, 1980-10-01)Optical reflectivity spectra of the first-row transition metal intercalation complexes, M1/3NbS2 and M1/3TaS2 (M = V, Cr, Mn, Fe, Co, Ni), Mn1/4 TaS2 and Fe1/4 NbSe2 have been measured at room temperature and compared with ...
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(Taylor & Francis Group, 1989-09-01)45° twins and microtwin domain structure in electron diffraction patterns displaying pseudo-eightfold rotational symmetry were studied in a rapidly solidified Cr5Ni3Si2 alloy by means of transmission electron microscopy. ...
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(Taylor & Francis Group, 1994-07-01)The process of mechanical alloying and the phase transformations that accompany ball-milling Cu and Zn powder mixtures have been investigated by 63Cu NMR spectrometry and X-ray diffractometry. Ball-milling the Cu-Zn powder ...
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(Taylor & Francis Group, 1985-02-01)By using the KKR-Green function method, the electronic structure of impurities in transition metals has been calculated within the local spin-density approximation. The electronic structure of 3d impurities in Cu are ...
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(Taylor & Francis Group, 1990-05-01)We use real-space local density functional theory to investigate the formation and stability of paramagnetic defects involving H in a-Si:H. We have considered the mechanism for dangling-bond formation by exciting an ...
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(Taylor & Francis Group, 1985-02-01)The results of an ab initio all-electron Hartree-Fock study of the interaction of oxygen with Al10 and Al3 clusters are reported. These clusters model the closepacked Al(111) surface. The Al10 cluster has seven atoms in ...
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(Taylor & Francis Group, 1996-01-01)We describe the construction of ab initio databases that can be used for fitting and testing empirical atomistic potentials. In particular, we show how the use of a large ab initio database can overcome the problem of ...
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(Taylor & Francis Group, 1978-02-01)Localized electronic states lying deep within the forbidden energy gap of an amorphous solid are improbable occurrences associated with distortions for which the energetics appropriate to normally bonded atoms are no longer ...
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(Taylor & Francis Group, 1978-03-01)An analysis of interatomic forces operative in the alkali halides is performed within the framework of the Born model using recent experimental data based on ultrasonic measurements. Several forms of the potential, ...
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(Taylor & Francis Group, 1981-02-01)Photoemission studies have been made of the clean and oxidized amorphous Si surface at hv = 10·2, 21·2 and 40·8 eV. For the clean surface, no emission from surface states in the band gap is found and exposure to small ...
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(Taylor & Francis Group, 1983-12-01)A new method of analysis is proposed in order to obtain absolute ionic partial molal volumes, V(ion), from data on the molal volumes of solutions of 1 : 1 electrolytes, V(MiXj), in aqueous solution at 298 K. The method ...
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(Taylor & Francis Group, 1978-05-01)An absolute measurement of the (110) scattering factor f of single-crystal vanadium has been performed using monochromatic Ag Kα radiation. The result for f (15·75±0·25) agrees with a previous measurement on a powder sample ...
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(Taylor & Francis Group, 1985-12-01)We have measured the Thomson coefficient μ of platinum and tungsten from 900 to 1600 K and calculated the absolute thermopower S of each. We describe a numerical technique for evaluating the temperature profile of a wire ...
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(Taylor & Francis Group, 1990-04-01)
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(Taylor & Francis Group, 1979-11-01)The a.c. conductivity of r.f. sputtered SiO2 films has been measured in the frequency range 40–107 Hz and in the temperature range 77–573 K. For T ≥ 320 K, the conductivity obeys an equation of the form σ ω = Aωs, where ...
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(Taylor & Francis Group, 1988-09-01)A.c. and d.c. conductivities of amorphous films of Ge—Sb–Se have been investigated for different Sb: Se ratios, keeping the Ge content constant at 20 at. %. The a.c. conductivity [sgrave](ω, T) in the frequency range ...
Отображаемые элементы 1-20 из 2802