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Publikováno v:
Journal of Physics: Condensed Matter. 18:6429-6430
Autor:
Sajan Kumar, M. K. Gupta, Prabhatasree Goel, R. Mittal, Olivier Delaire, A. Thamizhavel, S. Rols, S. L. Chaplot
Publikováno v:
Physical Review Materials. 6
Autor:
Prabhatasree, Goel, M K, Gupta, R, Mittal, S J, Skinner, S, Mukhopadhyay, S, Rols, S L, Chaplot
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 32(33)
We report investigation of phonons and oxygen diffusion in Bi
Autor:
Choudhury, Narayani1 dynamics@barc.gov.in, Chaplot, S. L.1
Publikováno v:
Pramana: Journal of Physics. Oct2008, Vol. 71 Issue 4, p819-828. 10p. 1 Chart, 3 Graphs.
Publikováno v:
Physical Review Letters. 123
Publikováno v:
Physical Review B. 99
We have performed ab-initio lattice dynamics and molecular dynamics studies of Li2X (X=O, S and Se) to understand the ionic conduction in these compounds. The inelastic neutron scattering measurements on Li2O have been performed across its superionic
Publikováno v:
Journal of Physics and Chemistry of Solids. 150:109819
Cu2ZnSnS4 is a p-type semiconductor that has been seen as a possible replacement for SnSe, Cu (In,Ga)Se2 etc. in thin film solar cells, due to non-toxicity and natural abundance of their constituent elements. Polycrystalline Cu2ZnSnS4 samples (kester
Publikováno v:
Physical Chemistry Chemical Physics. 19:12107-12116
We investigate detailed lattice dynamics of copper halides CuX (X=Cl, Br, I) using neutron inelastic scattering measurements and ab-initio calculations aimed at a comparative study of their thermal expansion behavior. We identify the low energy phono
Autor:
Sanjay Kumar Mishra, Ranjan Mittal, P. S. R. Krishna, S. L. Chaplot, S. Matsuishi, P. D. Babu, Hideo Hosono, P. U. M. Sastry
Publikováno v:
Pramana. 86:1369-1381
The thermal expansibilities and phase stabilities of AFe 2As 2 (A = Ca, Sr and Eu) have been investigated by powder diffraction techniques in the temperature range 5–600 K. We found the anisotropic thermal expansivities with temperature for all the