A generalized form of the ballistic-diffusive equations (BDEs) for approximate solution of the Boltzmann Transport equation (BTE) for phonons is formulated. The formulation presented here is new and general in the sense that, unlike previously published formulations of the BDE, it does not require a priori knowledge of the specific heat capacity of the material. Furthermore, it does not introdu...

By means of Monte Carlo simulations coupled with a two-dimensional Poisson solver, we evaluate directly the possibility to use high mobility materials in ultra fast devices exploiting ballistic transport. To this purpose, we have calculated specific physical quantities such as the transit time, the transit velocity, the free flight time and the mean free path as functions of applied voltage in ...

In this paper we present a compact model of DoubleGate MOSFET architecture including ballistic and quasiballistic transport down to 20 nm channel length. In addition, this original model takes into account short channel effects (SCE/DIBL) by a simple analytical approach. The quasi-ballistic transport description is based on Lundstrom’s backscattering coefficient given by the socalled flux metho...

We work out a theory of the Coulomb drag current created under the ballistic transport regime in a one-dimensional nanowire by a ballistic non-Ohmic current in a nearby parallel nanowire. As in the Ohmic case, we predict sharp oscillation of the drag current as a function of gate voltage or the chemical potential of electrons. We also study dependence of the drag current on the voltage V across...

Rumsey, D.W. M.S., Purdue University, December 2001, Electrical Characterization of Bulk MOSFETS in Terms of Backscattering Coefficients. Major Professor: Mark S. Lundstrom As the end of the roadmap for semiconductor devices is approached, channel lengths are shrinking, and drain current demands are remaining high. Current day devices operate in a quasi-ballistic regime. In order to assess devi...

Theoretical bounds for estimating the ballistic coefficient of a ballistic object during the re-entry phase have been addressed. One essential characteristic of the vehicle trajectory is its deceleration when it reaches dense atmospheric layers. The intensity of the phenomenon is proportional to a scalar, called the ballistic coefficient. This leads to an highly nonlinear time-varying dynamic. ...

A sensor fusion methodology for the Gaussian mixtures model is proposed for ballistic target tracking with unknown ballistic coefficients. To improve the estimation accuracy, a track-to-track fusion architecture is proposed to fuse tracks provided by the local interacting multiple model filters. During the fusion process, the duplicate information is removed by considering the first order redun...

We investigate the critical current I_{C} of ballistic Josephson junctions made of encapsulated graphene-boron-nitride heterostructures. We observe a crossover from the short to the long junction regimes as the length of the device increases. In long ballistic junctions, I_{C} is found to scale as ∝exp(-k_{B}T/δE). The extracted energies δE are independent of the carrier density and proportiona...

In the present study the impulse Ib transmitted by a hemispherical contact charge is calculated analytically and compared with experimental measurements. The impulse is measured experimentally with the use of a ballistic pendulum. The explosive charge is placed on a disk shaped striking mass. The mass is in contact with a nondeformable tubular structure placed on an instrumented base on a balli...