Autor: Siva Kumar, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Vibrational Spectroscopy of H_2O by Lie Algebraic Methods
Autorzy:: Karumuri, S.
Srinivas, G.
Sunil Babu, K.
Sundara Siva Kumar, V.
Hanumaiah, A.
Powiązania:: https://bibliotekanauki.pl/articles/1399490.pdf
Data publikacji:: 2013-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 03.65.Fd
02.20.Sv
33.20.Ea
Opis:: An algebraic model of coupled anharmonic oscillators is introduced, capable of describing the stretching vibrations of medium-size molecules. This model is applied to the calculation of O-H vibrational modes of water molecules. In this paper, we have reported the stretching and bending vibrational energy levels of water molecule using the algebraic and density functional theory method. The results obtained by theoretical models show good agreement with the experimental values.
Źródło:: Acta Physica Polonica A; 2013, 124, 1; 3-5
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Structural and Optical Behaviour οf~Ni Doped CdS Nanoparticles Synthesized by Chemical Co-Precipitation Method
Autorzy:: Siva Kumar, K.
Divya, A.
Sreedhara Reddy, P.
Uthanna, S.
Martins, R.
Elangovan, E.
Powiązania:: https://bibliotekanauki.pl/articles/1492639.pdf
Data publikacji:: 2011-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 61.05.Cp
61.72.-y
78.55.Et
78.67.Bf
Opis:: Pure and Ni (2 at.%) doped cadmium sulfide (CdS) nanoparticles have been synthesized by chemical co-precipitation method at room temperature. Effect of Ni doping on CdS compound semiconductors has been analyzed using X-ray diffractometer, transmission electron microscope, energy dispersive spectroscopy, Raman and optical absorption studies. X-ray diffraction study confirmed the structure of the obtained nanoparticles to be single-phase zinc blende with the diffractions from (111), (220) and (311) planes. Energy dispersive spectroscopy study confirmed the presence of Ni in the CdS lattice. The average particle size obtained from the transmission electron microscopy studies are in agreement with the crystallite size calculated from X-ray diffraction data. The optical studies exhibited a clear red shift of absorption edge as a function of Ni doping.
Źródło:: Acta Physica Polonica A; 2011, 120, 6A; A-052-A-054
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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