Phonon Assignments in II–VI and III–V Semiconductor Compounds Having Zincblende‐Type Structure

RK Ram, SS Kushwaha, A Shukla�- physica status solidi (b), 1989 - Wiley Online Library
… The results of Talwar and Agrawal [ 151 lend support to our calculations and it seems that
our assignments (Tables 5 to 7) to the observed infrared and/or Raman peaks are correct. In …

Raman and infrared vibrational frequencies and elastic properties of solid BaFCl calculated with various Hamiltonians: an ab initio study

M Merawa, Y Noel, B Civalleri, R Brown…�- Journal of Physics�…, 2005 - iopscience.iop.org
Calculations have been performed with a development … The influence of the basis set
effects in the calculation of the … adopted for all steps of the calculation, except for the vibrational …

Acidity of hydroxamic acids: an ab initio and semiempirical study

ON Ventura, JB Rama, L Turi…�- Journal of the American�…, 1993 - ACS Publications
… Abstract: High-level ab initio calculations,using basissets with several diffuse and … AMI
semiempirical and ab initio calculations are in general agreement and agree with this particular …

Cosmological Constant in Low Energy d= 4 String Leads to (static Spherically Symmetric) Naked Singularity

S Kalyana Rama�- Modern Physics Letters A, 1995 - World Scientific
… Therefore, in the following, we will solve for the fields in the Einstein frame, and calculate
the curvature scalar in the string frame. Consider the low energy heterotic string in d = 4 space-…

Early universe evolution in graviton-dilation models

SK Rama�- Physical Review D, 1997 - APS
We present a class of graviton-dilaton models which leads to a singularity-free evolution of
the universe. We study the evolution of a homogeneous isotropic universe. We follow an …

Molecularly nonstoichiometric crystals in phosphorus compounds

M Chakravarty, R Rama Suresh…�- Inorganic�…, 2007 - ACS Publications
… The van der Waals volumes (calculated) for sulfur and selenium are respectively 24.4 and
28.7 � 3 (the van der Waals radius for sulfur is 1.8 �, and that for selenium is 1.9 �). Thus, the …

High pressure Raman study of Y3Al5O12

J Arvanitidis, K Papagelis, D Christofilos…�- …�status solidi (b), 2004 - Wiley Online Library
… In the present study the calculations have been performed by … The standard deviation
between the calculated and the … The calculated ionic effective charges are 1.610e, 2.375e, …

Tachyon splits the (d=2 string) black-hole horizon and turns it singular

SK Rama�- Physical review letters, 1993 - APS
… Hence, the "black-hole mass" calculated asymptotically, using any of the methods of [3, 13],
is of … That this is what happens can be seen by calculating the kinetic [(|7T)~]and potential (V) …

Effect of D− D‾ mixing in the extraction of γ with B−→ D 0 K− and B−→ D 0 π− decays

M Rama�- Physical Review D, 2014 - APS
We examine the impact of D − Dmixing in the extraction of the angle γ of the unitarity triangle
with B − → D ( * ) 0 K ( * ) − and B − → D ( * ) 0 π − decays. We point out that the leading …

A class of LQC-inspired models for homogeneous, anisotropic cosmology in higher dimensional early universe

SK Rama�- General Relativity and Gravitation, 2016 - Springer
… to the extrinsic curvature, and \(\gamma > 0\) and \(\approx 0.2375\) is the Barbero–Immirzi
parameter of LQG, its numerical value being suggested by the black hole entropy calculations