Microelectronics Journal

The design of CAD tools for nanofabrics involves new challenges not encountered with conventional design flow used for CMOS technology. In this paper, we propose to define a new framework able to help the designer to map an application on a wide range ...

Contrasting with the extensive research focusing on nano-devices properties and fabrication, not enough attention is probably given to computing architectures for these devices. This paper describes a method for mapping an FPGA architecture to a nano-...

Cobalt ferrite (CoFe"2O"4) possesses excellent chemical stability, good mechanical hardness and a large positive first-order crystalline anisotropy constant, which made this ferrite a promising candidate for magneto-optical recording media. In addition ...

The use of a ferromagnetic fluid for cooling applications represents an encouraging alternative to traditional methods; the fact that the fluid can be pumped with no moving mechanical parts, using the magnetocaloric effect, can be a great advantage for ...

The surface of a ceramic substrate can be modified locally by introducing a second phase into a melt pool generated by a laser beam. CuO and WO"3 powders with nano-sized particles were used to laser-alloy alumina and a low-temperature co-fired ceramic (...

Crystalline tungsten disulphide nanoparticles were successfully synthesized by the chemical vapor condensation (CVC) method. The process performed as decomposition of tungsten hexacarbonyl over sulphur vapor in inert gas flow, where WS"2 nanoparticles ...

It is important to understand catalytic reactions involved in synthesizing carbon nanotubes. Usually, catalysts are used with supporters for better stability and influences of supporters on catalysis is negligible; however, catalysts used for ...

The results of local anodic oxidation (LAO) on the thin GaMnAs layers are reported. The ferromagnetic GaMnAs layers were prepared by low-temperature molecular beam epitaxy (MBE) growth in a Veeco Mod Gen II machine. The LAO process was performed with ...

In this paper ZnO nanorods and nanodots (with and without a SiO"2 buffer layer) were grown on p-Si, forming p-n heterojunctions. The nanorod devices showed no visible electroluminescence (EL) emission but showed rectifying behavior. Covering around 60% ...

The linear electrodynamic properties of graphene-the frequency-dependent conductivity, the transmission spectra and collective excitations-are briefly outlined. The non-linear frequency multiplication effects in graphene are studied, taking into account ...

The thermodynamic properties of graphene nanoribbons under zero and finite magnetic fields have been investigated. We have obtained qualitative and quantitative results of the free energy and the magnetic susceptibility in graphene nanoribbons. The ...

We study theoretically the feasibility of amplification and generation of THz radiation in dc-ac-driven semiconductor superlattices in the absence of electric domains. We find that if in addition to dc bias strong ac pump fields are applied, Bloch gain ...

Coupling the emitted light from single quantum dots into an optic fiber has been demonstrated as a 'plug and play' single-photon source. In this work, lifetime dynamics measurements were performed with two time-delayed femtosecond optical pulses at ...

We show that a phonon wave propagating through a semiconductor superlattice can induce a charge current even when no static electric field is applied. When the energy amplitude of the phonon wave is less than the width of the lowest superlattice ...

For thin Bi films with thicknesses d=10-60nm the dependences of the Hall coefficient, Seebeck coefficient, electrical conductivity, and Hall carrier mobility on d have been obtained at room temperature. Distinct oscillations of the transport properties ...

The pseudomorphic high electron mobility transistor (pHEMT) was designed with 0.05@mm gate. The reduced size of the gate provides immediate advantage for high frequency, better linearity and higher breakdown voltage. The design of extremely small gate, ...

Magneto optical micro-spectroscopy allowed us to access the magnetic field dependency of the photoluminescence of Cd(Mn)Te/ZnTe single quantum dots. We report a strongly non-linear behavior of the exciton and biexciton energies as a function of magnetic ...

Two types of nanophotonic technologies-two-dimensional photonic crystal (2D PC) slab waveguides (WGs) and quantum dots (QDs)-were developed for key photonic device structures in the future. For an ultrafast digital photonic network, an ultrasmall and ...

Photoluminescence (PL) of CdSe/ZnS quantum dots (QDs) deposited on Si and photonic crystals with packed silica spheres, are investigated with the purpose of establishing enhancement of PL. Quantum dots with size ~2.4nm are introduced into the solution ...

The present work reports on the effect of the type of backside contact used in the electrochemical process and their relation with the structural features and optical responses of the one-dimensional photonic crystal (PC) anodized in simple and double ...

We study the absorption and dispersion properties of photonic quantum wires made from a dielectric photonic crystal and a metallic photonic crystal where the former is embedded into the latter. The dielectric crystal is doped with an ensemble of ...

The effect of a metallic gate on the bound states of a shallow donor located near the gate is studied. We calculate the energy spectrum as a function of the distance between the metallic gate and the donor and find an anti-crossing behavior in the ...

We report a numerical study of both donor- and acceptor doping impurity effects in the quantum transport of silicon nanowire metal-oxide-semiconductor (MOS) transistors. The code is based on a full three-dimensional (3D) real-space non-equilibrium green ...

We present a new ''templated self-organization'' method for the preparation of Ge nanocrystals in SiO"2 that combines a bottom-up with a top-down approach for nanostructuring. Ge nanocrystals are formed by self-organization induced by thermal annealing ...

The excitonic properties of ordered and disordered Si/Ge nanocrystals (NCs) are investigated by means of ab initio calculations. In the former group, we investigate Si(core)/Ge(shell) and Ge(core)/Si(shell) NCs, while alloyed Si"1"-"xGe"x NCs are ...

The crossover from strong to weak localization in a two-dimensional array of Ge/Si quantum dots (QDs) is observed for the first time. To approach the transition, the wave function spreading was enhanced by variation of the number of holes in dots, by an ...

CMOS scaling entails various undesirable phenomena such as short-channel effect (SCE), parameter fluctuation, and tunneling leakage. To deal with these issues, various device structures are proposed. For better short channel behavior and performance ...