Acta Physica Hungarica

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On the role of anti-bound states in the RPA description of the giant monopole resonance
Acta Physica Hungarica - Tập 65 - Trang 305-313 - 1989
T. Vertse, P. Curutchet, R. J. Liotta, J. Bang
The limit of the applicability of the resonant random phase approximation method is tested by calculating escape widths in the giant monopole resonance of16O and comparing them to the results of a time dependent Hartree-Fock calculation. Though the widths of the narrows-wave component agree reasonably well, the broadp-wave component shows large disagreement, which cannot be cured by complementing ...... hiện toàn bộ
On the thermoelectric power in gapless semiconductors
Acta Physica Hungarica - Tập 67 - Trang 407-410 - 1990
K. P. Ghatak
Comparative study of GaAs epitaxial layers grown by MOCVD
Acta Physica Hungarica - Tập 74 - Trang 227-233 - 1994
K. Somogyi
The main aim of this work is to compare some galvanomagnetic and electrical properties, and also photoluminescence spectra of undoped GaAs epitaxial layers grown on (100) GaAs substrates by gas phase epitaxy using organometallic Ga source (OMVPE or MOCVD technique). It is hoped that the mentioned properties can show specific differcences. Preliminary results are presented here. Low temperature (at...... hiện toàn bộ
Possibility of a thermal catastrophe in the earliest period of the earth as revealed by the volatile content of igneous crustal and mantle rocks
Acta Physica Hungarica - Tập 55 - Trang 427-442 - 1984
A. Szalay
Experimental investigations of the total volatile (water and gases) content of a number of igneous crustal and mantle rock samples demonstrate that the crust is degassed in comparison with the volatile rich mantle. A hypothesis is postulated according to which the degassing of the surface of the Earth occurred by a short catastrophal external heating event which did not penetrate into the deeper m...... hiện toàn bộ
Influence of solvents and temperature on the excited state characteristics of coumarin laser dyes
Acta Physica Hungarica - Tập 70 Số 1-2 - Trang 3-13 - 1991
Rajesh Giri, Servin Rathi, M. K. Machwe
Investigation of morphology and surface structure of small NaCl particles
Acta Physica Hungarica - Tập 57 - Trang 285-293 - 1985
M. Rösler
The morphology and the surface structure of small NaCl particles, produced by gasevaporation-technique (GET), were investigated by means of the decoration method. It was shown how the size and the morphology of the particles from the inner zone of the convection flow depend on the temperature of the evaporation source and the gas pressure. Details of the surface structure of spherical, facetted sp...... hiện toàn bộ
Photoluminescence and conductivity compensation effects in fast-electron irradiated InP epilayers
Acta Physica Hungarica - - 1994
С. И. Радауцан, I. M. Tiginyanu, N. B. Pyshnaya, V. V. Ursaki
The electrical conductivity and pyroelectrical properties of ferric acetylacetone single crystal
Acta Physica Hungarica - Tập 60 - Trang 107-112 - 1986
N. M. Molokhia
The dielectric constant, the electrical conductivity and the pyroelectric behaviour of ferric acetylacetone Fe(ac.ac)3 single crystal have been measured as a function of temperature from 20 to 140 °C. The measurements along theb-axis show a peak value in the dielectric constant at 82 °C, while no peaks were recorded along the other axes. This anomaly is described as due to a phase transition. On r...... hiện toàn bộ
A theory of massive photons and monopoles
Acta Physica Hungarica - Tập 67 - Trang 359-362 - 1990
G. Callegari, P. Fortini, D. Tartari
A unified theory of massive photons and monopoles is proposed and compared with the measurement of the magnetic field of the earth.
Finite element analysis of process control and operating limits in edge-defined film-fed growth (EFG) of silicon and sapphire ribbons: A review
Acta Physica Hungarica - - 1985
J.P. Kalejs, Hisham Ettouney, Robert A. Brown
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