Now showing items 21-30 of 855
Computer-aided simulation of a rotary sputtering magnetron
(The American Institute of Physics, 2004-06-01)
In the past, computer-aided simulation of sputtering magnetron has been applied mainly to planar cathodes with flat target surfaces. In this work, we have simulated the target erosion profile of a cylindrical rotary magnetron ...
Thin-film ferromagnetic semiconductors based on Sb2−xVxTe3Sb2−xVxTe3 with TCTC of 177 K177K
(The American Institute of Physics, 2005-09-12)
Thin-film ferromagnetic semiconductors Sb2−xVxTe3Sb2−xVxTe3 with the Curie temperature as high as 177 K177K were prepared on sapphire (0001) substrates by molecular-beam epitaxy. Films of Sb2−xVxTe3Sb2−xVxTe3 with xx up ...
Internal plasma potential profiles in a laboratory-model Hall thruster
(The American Institute of Physics, 2001-02)
The Plasmadynamics and Electric Propulsion Laboratory High-speed Axial Reciprocating Probe system is used in conjunction with a floating emissive probe to measure plasma potential in the discharge chamber of the P5 Hall ...
High-efficiency organic polymer light-emitting heterostructure devices on flexible plastic substrates
(The American Institute of Physics, 2000-02-07)
In this letter, we describe a high-efficiency organic polymer light-emitting heterostructure device with aluminum cathode fabricated on a thin, flexible plastic substrate. The device consists of a hole transporting ...
Metal piezoelectric semiconductor field effect transistors for piezoelectric strain sensors
(The American Institute of Physics, 2004-08-16)
In this letter, we examine the potential of a functional device that can have good transistor and stress sensor properties. The device examined is based on the use of a thin oxide with high piezoelectric coefficients under ...
Adaptation through minimization of the phase lag in coupled nonidentical systems
(The American Institute of Physics, 2004-09)
We show that the internal control of adaptation can be obtained from the properties of the phase lag that results from phase synchronization of two nonidentical chaotic oscillators. The direction and magnitude of the phase ...
Effects of pulse-length and emitter area on virtual cathode formation in electron guns
(The American Institute of Physics, 2002-05)
Recent experiments at the University of Maryland using photoemission from a dispenser cathode have yielded some interesting results regarding the effects of the area of emission and of the ratio between the pulse length ...
Mechanisms for current-induced conductivity changes in a conducting polymer
(The American Institute of Physics, 2006-10-02)
A layer of polyethylene dioxythiophene:polystyrene sulfonic acid (PEDT:PSS) spun onto the surface of an inorganic semiconductor forms a highly asymmetric rectifying junction when a small current is applied and can be ...
Sources, injection and acceleration of heliospheric ion populations
(The American Institute of Physics, 2000-09-15)
A variety of heliospheric ion populations—from Anomalous Cosmic Rays (ACRs) to particles accelerated in Corotating Interaction Regions (CIRs)—have been observed and studied for several decades. It had been commonly assumed ...