Zobrazeno 1 - 10
of 72
pro vyhledávání: '"K.S Upadhyaya"'
In the present communication authors are reportinglattice dynamical study of Europiumsulfide (EuS).Which is based on the two phenomenological models, by including the effect of three-body interactions(TBI) in the frame work of rigid ion model(TRIM) &
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https://explore.openaire.eu/search/publication?articleId=doi_________::4ff4bc43ff022d8f155c40e530bb9e34
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Publikováno v:
physica status solidi (b). 229:1129-1138
A new model for studying the lattice dynamics of ionic and semiconducting crystals has been developed by incorporating the effects of van der Waals interactions (VWI), free-carrier doping (FCD) and three-body interactions (TBI) in the framework of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6143425543900098b60844339ec03be
https://doi.org/10.1002/1521-3951(200202)229:3<1129::aid-pssb1129>3.0.co
https://doi.org/10.1002/1521-3951(200202)229:3<1129::aid-pssb1129>3.0.co
Publikováno v:
Journal of Physics and Chemistry of Solids. 63:127-133
A unified study of lattice dynamics of paramagnetic NiO has been studied by correcting the basic equations of the three-body force shell model for the valency of the cations and anions. The shell charge and core charge parameters are also modified. T
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https://explore.openaire.eu/search/publication?articleId=doi_________::7d03db1382e57274c01195754231e86e
https://doi.org/10.1016/s0022-3697(01)00088-9
https://doi.org/10.1016/s0022-3697(01)00088-9
Publikováno v:
International Journal of Hydrogen Energy. 17:37-40
The FeTi films of different thicknesses were deposited onto glass substrate at different deposition angles ( θ = 0°, 30°, 45°, 60° and 75°) simultaneously. The resistance and activation energy of FeTi films is found to decrease with thickness o
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https://explore.openaire.eu/search/publication?articleId=doi_________::f1c3e16a0520f1177eaa6c84f739047d
https://doi.org/10.1016/0360-3199(92)90219-m
https://doi.org/10.1016/0360-3199(92)90219-m
Akademický článek
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Akademický článek
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Autor:
K.S. Upadhyaya, R.K. Singh
Publikováno v:
Journal of Physics and Chemistry of Solids. 36:293-297
A theoretical investigation of the lattice vibrations in alkaline earth oxides (CaO and SrO) has been carried out by means of a three-body force shell model which considers the ionic charge Z as an independent parameter and both the ions polarizable.
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https://explore.openaire.eu/search/publication?articleId=doi_________::4d89807cdee8fac96d681eca1370e82f
https://doi.org/10.1016/0022-3697(75)90025-6
https://doi.org/10.1016/0022-3697(75)90025-6
Autor:
Rajinder Singh, K.S. Upadhyaya
Publikováno v:
Solid State Communications. 11:567-569
A three-body force shell model has been applied to compute the dispersion of phonons in calcium oxide along principal symmetry directions. The results show much better agreement with the measured phonon dispersion data as compared to the other variat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::febfbbb90f7da1290f1056c69289d298
https://doi.org/10.1016/0038-1098(72)90127-5
https://doi.org/10.1016/0038-1098(72)90127-5
Autor:
Rajinder Singh, K.S. Upadhyaya
Publikováno v:
Solid State Communications. 11:109-111
The dispersion properties of manganous oxide have been studied using three-body force shell model. The results give reasonable agreement with measured phonon dispersion data. The applicability of the shell models and the requirement of more accurate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7a1508f264a220000a619815ea0bfed
https://doi.org/10.1016/0038-1098(72)91141-6
https://doi.org/10.1016/0038-1098(72)91141-6