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X-ray crystallography is a method for determining three-dimensional images of materials arranged in regular arrays through the phenomenon of diffraction. These periodic arrays exist within structures of crystals and each period of this array is termed the unit cell. The recent invention of a new x-ray source offer novel ways of doing x-ray crystallography where very small crystals, only a few unit...
Cellulose is the most abundant renewable source of organic molecules on earth[1]. As fossil fuel reserves become depleted, the use of cellulose as a feed stock for fuels and chemicals is being aggressively explored. Cellulose is a linear polymer of glucose that packs tightly into crystalline fibrils that make up a substantial proportion of plant cell walls. Extraction of the cellulose chains from...
CoPt thin films sputtered under high and low Ar pressures were found to have different microstructures. Films deposited under high Ar pressures contained an amorphous phase with segregated oxygen. Those prepared under low Ar pressures exhibited Pt modulation within crystal grains, but did not contain an amorphous phase. The magnetic properties of low-Ar pressure films depended on the perpendicular...
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