نتایج جستجو برای: wave penetration
تعداد نتایج: 252671 فیلتر نتایج به سال:
We study gate capacitance of deep submicron MOSFETs with high-K gate dielectrics. Schrödinger’s equation is solved by applying an open boundary condition at silicon-gate dielectric interface. Self-consistent numerical results reveal that accounting for wave function penetration into the gate dielectric causes the carrier distribution to be shifted closer to the gate dielectric. This effect incr...
The superconducting gap structure in iron-based high-temperature superconductors (Fe-HTSs) is non-universal. In contrast to other unconventional superconductors, in the Fe-HTSs both d-wave and extended s-wave pairing symmetries are close in energy. Probing the proximity between these very different superconducting states and identifying experimental parameters that can tune them is of central i...
[1] The penetration of extremely low frequency (ELF) transient electromagnetic fields and associated currents in the Earth’s equatorial E-region plasma is studied theoretically and numerically. In the low-frequency regime, the plasma dynamics of the E-region is characterized by helicon waves since the ions are viscously coupled to neutrals while the electrons remain mobile. For typical equatori...
Shaped-charge penetration of explosives is studied analytically and experimentally. Two models are developed, each applicable to a different regime of jet velocity. The first addresses high-velocity penetration. If a jet is sufficiently fast, its penetration velocity will exceed the explosive's detonation velocity, and the process may achieve a steady state with the crater following the detonat...
This work pioneers the atomistic modeling of the shock wave in background gas in picosecond laser-material interaction. It is found in the shock wave the compressed ambient gas region has a very uniform temperature distribution while the temperature decreases from the front of the plume to its end. The group velocity of atoms in the shock wave front is much smaller than the shock wave propagati...
The penetration depth ( ) dependence on temperatures for high superconducting YBa2Cu3O7 thin films stored in various environments was measured by a well-designed microwave dielectric resonator. A -wave 2 dependence was observed at low temperatures, while an exponential dependence of the penetration depth ( ) relevant to the wave was detected as temperature increases due to thermal fluctuation. ...
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