We investigated the electrical and structural properties of TbScO3 as an alternative gate dielectric. Rutherford backscattering spectrometry revealed a stoichiometric film while X-ray photo-electron spectroscopy indicated silicate formation at the interface. Capacitance-Voltage measurements resulted in well behaving C-V curves with no hysteresis and a low density of interface trap states in the...

We demonstrate n-type doping of pentacene with the powerful reducing molecule decamethylcobaltocene (CoCp∗2). Characterization of pentacene films deposited in a background pressure of CoCp∗2 by X-ray photoemission spectroscopy and Rutherford backscattering confirm that the concentration of incorporated donor molecules can be controlled to a level as high as 1%. Ultraviolet photoemission spectro...

The use of acoustic waves in researches related to sea water is of most importance among scientists recently. Since these waves are the only waves, transmitted in water with lowest attenuation and high speed, they can be used in many scientific fields. The main goal of this research is to better understand the physics and mechanisms of sound-seabed interaction, including acoustic penetration, p...

Cubic rock salt structure Al0.60Cr0.40N and Al0.68Cr0.32N films of different thicknesses were grown epitaxially onto MgO(111) substrates by reactive unbalanced magnetron sputtering at 500°C. Rutherford backscattering spectroscopy reveals stoichiometric nitrides with Al/Cr ratios close to the ones of the used compound targets of 60/40 and 70/30. High resolution xray diffraction proves epitaxial ...

This is a colloquium-style introduction to two electronic processes in a carbon monolayer (graphene), each having an analogue in relativistic quantum mechanics. Both processes couple electron-like and hole-like states, through the action of either a superconducting pair potential or an electrostatic potential. The first process, Andreev reflection, is the electron-to-hole conversion at the inte...

Hooks and other sub-surface features in continuous-cast ultralow-carbon steel samples were examined using optical microscopy, electron backscattering diffraction, energy dispersive X-ray spectroscopy, and electron probe microanalysis techniques. Special etching reagents revealed dendrites growing from both sides of the line of hook origin. This line was found to represent the frozen meniscus an...

Ultrasonic attenuation and backscattering were measured for bovine brain, spleen and liver and for porcine iiver as a function of time after excision for times up to 12Ohr. Tine attenuation coeificient exhibits insigniticant chaoges while the mean backscattering amplitude decreases substantiahy during the period such specimens are likely to be used. The changes in the two parameters are believe...

The transmission behavior of a quantum point contact in a magnetic field is calculated, exhibiting in detail the influence of intersubband scattering. In contrast to the commonly known reduction of backscattering by a magnetic field, it is shown here that a weak field can cause increased backscattering. Nevertheless, the present results serve to illustrate that backscattering can occur without ...