Si K Edge Structure and Variability in Galactic X-Ray Binaries

Posted by klaurent MIT

Kavli Affiliate: Claude Canizares | Summary:We survey the Si K edge structure in various absorbed Galactic low-mass X-ray binaries (LMXBs) to study states of silicon in the inter- and circum-stellar medium. The bulk of these LMXBs lie toward the Galactic bulge region and all have column densities above $10^22$ cm$^-2$. The observations were performed with […]


Continue.. Si K Edge Structure and Variability in Galactic X-Ray Binaries

Spectroscopic Studies of the Physical Origin of Environmental Aging Effects on Doped Graphene

Posted by klaurent Caltech

Kavli Affiliate: N. C. Yeh |Summary:The environmental aging effect of doped graphene is investigated as a function of the organic doping species, humidity, and the number of graphene layers adjacent to the dopant by studies of the Raman spectroscopy, x-ray and ultraviolet photoelectron spectroscopy, scanning electron microscopy, infrared spectroscopy, and electrical transport measurements. It is […]


Continue.. Spectroscopic Studies of the Physical Origin of Environmental Aging Effects on Doped Graphene