Destructive breakdown in thin films of SiO, MgF sub 2, CaF sub 2, CeF sub 3, CeO sub 2, and Teflon.
Prebreakdown and breakdown electrical properties of thin film capacitors with certain oxides, fluorides and Teflon dielectrics
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Prebreakdown and breakdown electrical properties of thin film capacitors with certain oxides, fluorides and Teflon dielectrics
Prebreakdown and breakdown electrical properties and light emission during destructive breakdown in thin film capacitors
Perturbations of F region electron density caused by the extension of magnetospheric convection electric field to middle latitudes are already well known. For the D region of the first observations are believed to be reported by Eliseyev, Kashpar and Nikitin (1988). On several occasions, following the southward turning of the Bz-component of interplanetary magnetic field (IMF) small disturbances of the D region electron density were detected at night by steep-incidence VLF sounding, which may be attributed to the influence of the penetrated convection electric field (CEF). Some evidence is given of a local time dependence of the CEF effect in the D region and a rather good correlation is demonstrated at the initial stage of disturbance between high latitude magnetic field variations and simultaneous perturbation of the midlatitude ionospheric reflection height.