Zobrazeno 1 - 10
of 358
pro vyhledávání: '"Kalavathi S"'
Publikováno v:
Appl. Surf. Sci. 469 (2019) 10-17
Polycrystalline diamond films with systematic change in microstructure that varies from microcrystalline to nanocrystalline structure are synthesized on Si by hot filament chemical vapor deposition. The morphology and structural properties of the gro
Externí odkaz:
http://arxiv.org/abs/1901.02698
Publikováno v:
In Physica B: Physics of Condensed Matter 1 January 2022 624
Autor:
Arpita Aparajita, A.N., Sanjay Kumar, N.R., Chandra, Sharat, Chandra Shekar, N.V., Kalavathi, S.
Publikováno v:
In Journal of Solid State Chemistry March 2021 295
Autor:
Aparajita, A.N. Arpita, Shwetha, G., Kumar, N.R. Sanjay, Srihari, V., Shekar, N.V. Chandra, Kalavathi, S.
Publikováno v:
In Journal of Physics and Chemistry of Solids November 2020 146
Autor:
Irshad, K.A., Anees, P., Rajitha, R., Ravindran, T.R., Srihari, V., Kalavathi, S., Shekar, N.V. Chandra
Publikováno v:
In Journal of Alloys and Compounds 5 May 2020 822
1LO optical phonons in free-standing mixed Cd1-xZnxS nanocrystals, synthesized using chemical precipitation, are investigated using Raman spectroscopy. As expected for the nanocrystals, the 1-LO modes are found to appear at slightly lower wavenumbers
Externí odkaz:
http://arxiv.org/abs/0905.0196
Autor:
Janaki, J., Kumary, T. Geetha, Mani, Awadhesh, Kalavathi, S., Reddy, G V R, Rao, G. V. Narasimha, Bharathi, A.
We have synthesized tetragonal iron selenide and telluride superconductors through solid state reaction at 450deg.C and 550deg.C respectively. These synthesis temperatures have been established by optimization. Electrical resistivity and magnetic sus
Externí odkaz:
http://arxiv.org/abs/0904.3851
Autor:
Dhara, S., Magudapathy, P., Kesavamoorthy, R., Kalavathi, S., Sastry, V. S., Nair, K. G. M., Hsu, G. M., Chen, L. C., Chen, K. H., Santhakumar, K., Soga, T.
Publikováno v:
Applied Physics Letters 88 (24) 241904 (2006)
InN phase is grown in crystalline InP(100) substrates by 50 keV N+ implantation at an elevated temperature of 400 deg C followed by annealing at 525 deg C in N2 ambient. Crystallographic structural and Raman scattering studies are performed for the c
Externí odkaz:
http://arxiv.org/abs/0708.2221
Autor:
Dhara, S., Magudapathy, P., Kesavamoorthy, R., Kalavathi, S., Nair, K. G. M., Hsu, G. M., Chen, L. C., Chen, K. H., Santhakumar, K., Soga, T.
Publikováno v:
Applied Physics Letters 87 (26) 281915 (2005)
Both hexagonal wurtzite and cubic zinc blend GaN phases were synthesized in GaAs by 50 keV N+ implantation at 400 deg C and subsequent annealing at 900 deg C for 15 min in N2 ambient. Crystallographic structural and Raman scattering studies revealed
Externí odkaz:
http://arxiv.org/abs/0708.2211
Autor:
Dhara, S., Chandra, Sharat, Mangamma, G., Kalavathi, S., Shankar, P., Nair, K. G. M., Tyagi, A. K., Hsu, C. W., Kuo, C. C., Chen, L. C., Chen, K. H., Sriram, K. K.
Publikováno v:
Applied Physics Letters 90 (21) 213104 (2007)
UV Raman scattering studies show longitudinal optical (LO) mode up to 4th order in wurtzite GaN nanowire system. Frohlich interaction of electron with the long range electrostatic field of ionic bonded GaN gives rise to enhancement in LO phonon modes
Externí odkaz:
http://arxiv.org/abs/0708.2229