Zobrazeno 1 - 10
of 88
pro vyhledávání: '"B. B. Tripathi"'
Publikováno v:
physica status solidi (b). 191:101-104
A modified rigid ion model is used to investigate the lattice dynamics of the superionic cerium dioxide compound with an appropriate effective charge in the electrostatic interaction and third-neighbour interaction for the short-range forces. The pre
Publikováno v:
Physica B: Condensed Matter. 210:91-94
An effort has been made with all possible interatomic interactions to gain insight into the nature of intercalant-clay interactions and their effect on the lattice dynamics of muscovite layered silicates. The phonon dispersion along the axis perpendi
Publikováno v:
physica status solidi (b). 185:117-121
The lattice dynamics of muscovite layered silicates along the finite wave vector direction is investigated. The calculated results are compared with available experimental results. The present angular force model gives a satisfactory picture of the p
Publikováno v:
Physica B: Condensed Matter. 167:175-181
A detailed study of zone centre phonons in mixed spinel structure compounds is presented, using an angular force constant model considering interatomic interactions up to third neighbours only. For the first time the dynamical matrix for spinel struc
Publikováno v:
physica status solidi (b). 160:K19-K24
Evaluation des constantes de force radiales pour les trois voisins. Les frequences des phonons au centre de la zone sont programmees a l'aide de ces trois constantes de force centrales. On incorpore les constantes de force angulaires
Publikováno v:
Tissue antigens. 54(1)
Genetic studies of Malnutrition related diabetes are few. We have analyzed HLA class II gene polymorphism in different types of diabetes mellitus patients from Cuttack in Eastern India. Patients with insulin-dependent diabetes mellitus (IDDM), non-in
Publikováno v:
Physica B: Condensed Matter. 159:383-387
The two-mode behaviour in HfS2−xTex (0⩽x⩽2) layer crystal having CdI2 structure for the end members HfS2 and HfTe2 has been studied utilizing the effect of interlayer and intralayer non-randomness parameters. A satisfactory agreement has been o
Publikováno v:
Il Nuovo Cimento B Series 11. 41:7-12
A simple form of transition metal model potential suggested by the authors has been used to investigate the phonon spectra of copper and silver. The results thus obtained show a fairly good agreement with the experimental ones.
Publikováno v:
physica status solidi (b). 128:K183-K186
Publikováno v:
physica status solidi (b). 113:339-346
The widely used Born-Mayer potential in the classical theory of ionic crystals is replaced by a quantum mechanical analytical potential form following the recent tight binding theory developed by Harrison. It is found that the crystalline data on int