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One of the innovative technological directions for the high-temperature superconductors has been persued by fabricating the
heteroepitaxial multilayer structures such as superconductor-semiconductor heterostructures. In the present investigation,
metal/superconductor/semiconductor (Ag/Tl-2223/CdSe) hetero-nanostructures have successfully been fabricated using dc electrodeposition
technique and were characterized by X-ray diffraction (XRD), full-width at half-maximum (FWHM) and scanning electron microscopy
(SEM) studies. The measurement of junction capacitance as a function of biasing voltage was used for the estimation of junction
built-in-potential (V
D) and to study the charge distribution in a heterojunction. The Mott-Schottky plots were measured for each junction in dark
and under the photo-irradiation. The effect of laser irradiation on C-V characteristics of hetero-nanostructure has been studied. 相似文献
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Da Silva L.B. Cauble R. Barbee T.W. Jr. Celliers P. Ciarlo D. Libby S. London R.A. Matthews D. Mrowka S. Moreno J.C. Ress D. Trebes J.E. Wan A.S. Weber F. 《IEEE transactions on plasma science. IEEE Nuclear and Plasma Sciences Society》1996,24(1):31-32
We have developed a soft X-ray interferometer capable of probing large high-density plasmas with micron spatial resolutions. A neon-like yttrium X-ray laser operating at 155 Å was combined with the Mach-Zehnder interferometer to obtain electron density profiles of a laser-produced exploding selenium foil plasma. The plasma was produced with one Nova laser beam using a 120-μm line focus, the same conditions used to create a selenium X-ray laser. The interferogram of the selenium plasma was obtained from an end-on perspective 相似文献
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The lifetimes of the 822, 865 and 1075 keV levels in75As, as well as the spins of the latter two levels, were determined by resonant scattering of gamma rays. The primary radiation from 3000 and 5000 Ci60Co sources was Compton scattered to produce gamma radiation of the desired energy for photo-excitation in75As. The lifetimes of the three levels were found to be 2.00 ps, 0.60 ps and 0.32 ps respectively. The angular distributions of the resonantly scattered radiation from the 865 keV and 1075 keV levels are consistent with spins of 5/2 and 3/2 respectively. Lifetime values are compared with excited-core model calculations. 相似文献
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Lee KK Benedetti LR Jeanloz R Celliers PM Eggert JH Hicks DG Moon SJ Mackinnon A Da Silva LB Bradley DK Unites W Collins GW Henry E Koenig M Benuzzi-Mounaix A Pasley J Neely D 《The Journal of chemical physics》2006,125(1):014701
Laser-driven shock compression of samples precompressed to 1 GPa produces high-pressure-temperature conditions inducing two significant changes in the optical properties of water: the onset of opacity followed by enhanced reflectivity in the initially transparent water. The onset of reflectivity at infrared wavelengths can be interpreted as a semiconductor<-->electronic conductor transition in water, and is found at pressures above approximately 130 GPa for single-shocked samples precompressed to 1 GPa. Our results indicate that conductivity in the deep interior of "icy" giant planets is greater than realized previously because of an additional contribution from electrons. 相似文献
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Alan Rigter Jan PM Langeveld Drophatie Timmers-Parohi Jorg G Jacobs Peter LJM Moonen Alex Bossers 《BMC biochemistry》2007,8(1):6