We have performed elasticity measurements in the bulk multiferroic BiFeO3 (BFO) using acoustical pump and probe spectroscopy. The sound velocities of (quasi)-longitudinal two (quasi)-transverse acoustic waves along three independent directions (110) surface been measured. Moreover, one wave longitudinal propagating perpendicular to detected. Based on initial input values six Cij elastic constan...

The last few decades have witnessed the development of a host of ideas aimed at understanding and predicting nature’s ever present complexity (see for instance, Mandlebrot, 1982; Bak, 1996; Wolfram, 2002). It is shown that such a work provides, through its detailed study of order and disorder, a suitable framework for visualizing the dynamics and consequences of mankind’s ever present divisive ...

In this paper, we introduce and develop the field of algebraic communication complexity, the theory dealing with the least number of messages to be exchanged between two players in order to compute the value of a polynomial or rational function depending on an input distributed between the two players. We define a general algebraic model over an arbitrary field k of characteristic 0, where the ...

Recently, in Phys. Rev. Lett. 95, 140601 (2005), P. Grassberger addresses the interesting issue of the applicability of q-statistics to the renowned Feigenbaum attractor. He concludes there is no genuine connection between the dynamics at the critical attractor and the generalized statistics and argues against its usefulness and correctness. Yet, several points are not in line with our current ...

In my presentation I will discuss how sociolinguistic corpora can be compiled so as to document and maximize access to the context of its collection. This is no doubt a murky issue for the coding and categorization enterprise, but it is as critical as demographic information if we are going to be able to compare data sets from different communities, eras or across research projects. However, ho...

We show the hyperbolicity of the Feigenbaum fixed point using the inflexibility of the Feigenbaum tower, the Manẽ-Sad-Sullivan λLemma and the existence of parabolic domains (petals) for semi-attractive fixed points.

in this article, the second quantization method has been used to investigate some thermodynamic properties of spin-polarized metallic nanowire in the presence of magnetic field at zero temperature. we have been observed that in different magnetic field, the equilibrium energy of system increases as the density increases. the spin-polarization parameter corresponding to the equilibrium state of ...

Experimental dielectric constants at (293.15, 298.15, 303.15) K, densities and refractive indices 293.15 K are reported for water- ethanol n-butanol binary mixture systems over the entire volume fraction range atmospheric pressure. From experimental data, excess constant, effective Kirkwood correlation factor, Bruggeman factor from density index data various parameters their properties like den...

classical trajectory (monte carlo) calculation is used to calculate collision rate constants of ion-quadrupolar molecule interactions for the h¯+c2h2 system. the method presented here takes into account the effect of the induced dipole-induced dipole potential on ion-quadrupolar molecule collision rate constants. it is also assumed that the colliding particles have a definite size. the thermal ...