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A new experimental technique is described, which measures the injection and propagation of charge in the Si 3 N 4 film of an MNOS structure caused by a pulsed electric field. Contrary to the widely held contention that the electrons injected from the Si are trapped in and very near the SiO 2...
A large uniaxial magnetic anisotropy has been observed in (100) and (111) Pb‐substituted Eu 3 Fe 5 O 12 garnet films grown by the LPE technique from PbO:B 2 O 3 fluxes. For a Pb content of about 5.0 wt% the uniaxial anisotropy was 1.9×10 5 erg∕cm 3 in films of (100) orientation and 0.5 × 10...
Backscattering analysis is used to investigate the effect of 150‐keV Ar ion bombardment on Mo thin films evaporated on silicon. Ar ion bombardment induces the migration of Mo atoms into the underlying substrate. These migration phenomena are caused mainly by an atomic recoil process, and depend...
Capillary tubing, used as a waveguide for surface acoustic waves confined to the interior surface, is shown to be a guiding structure that has a number of properties useful for long‐delay‐line applications. Very clean rf pulse transmission has been achieved, with spurious bulk modes stripped...
Magnetic domain wall mobilities in four kinds of bubble garnets are determined by the high‐frequency magnetic susceptibility measurement and are almost in agreement with bubble mobilities in these garnets obtained directly by a pulsed field gradient technique.
Diode lasers that operate cw at 77 K have been made from a Pb 0.88 Sn 0.12 Te☒PbTe double heterostructure grown by liquid phase epitaxy. Junction diffusion during growth has been prevented by the use of Tl‐doped PbTe substrates. The wavelength emitted in cw operation has been temperature...
Large but negative refractive index change (∼ 10% at 632.8‐nm line) is observed in several lithium niobate samples, each occurring in a thin layer induced by implantation of argon or neon ions. Implantation energy is 60 kV and the ion dose is 10 16 cm −2 or more in each sample. Mechanisms...
When light is launched into either an optical fiber or a bulk glass rod, discrimination of scattered and absorbed energies is possible through the different thermokinetics of these phenomena. The design and performance of a differential calorimetric arrangement are presented and simultaneous...
Quasicontinuous pulsed laser output at 5106 and 5782 Å is reported from 600°C copper iodide discharges at repetition rates near 8 kHz. In single pulses 35 μJ cm −3 has been observed, indicating that 0.28 W cm −3 volumetric power density can be achieved.
A new technique for measuring semiconductor doping profiles is described. The method is based on measurement of the isothermal space‐charge resistance R as a function of reverse current I in an avalanching abrupt junction. It is closely analogous to the usual C‐V profiling techniques but is...
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