X-rays and Crystal Structure

The Analysis of Crystal Structure by X-rays.

Scientific Events: Thomas Corwin Mendenhall; Minnesota Expedition to the Hawaiian Islands; Prize Essay Awards of the American Chemical Society; Psychological Researchat Yale University ........................................... 150 Scientific Notes and News ........................................... 152 Universityand Educational Notes ........................................... 156 Discussion...

The Crystal Structure of Chalcopyrite Determined by X Rays.

X-Ray, Crystal Structure and Solution Phase Studies of a Polymeric SrII Compound

In the crystal structure of the title polymeric compound, [C42H38N6O33Sr5.2(H2O)]n, five independent metal atoms (Sr1-Sr5) have different coordination environments. The Sr1 and Sr5 atoms are nine coordinated and feature distorted tricapped trigonal-prismatic and capped square-antiprismatic geometries, respectively....

A high resolving power, curved-crystal focusing spectrometer for short wavelength X-rays and gamma-rays.

Berry-phase translation of x rays by a deformed crystal.

We experimentally demonstrated an enhanced translation of an x-ray beam nearly parallel to the diffracting planes over millimeter distances in a deformed silicon crystal. This effect is a consequence of the Berry-phase effect in phase space [K. Sawada, Phys. Rev. Lett. 96, 154802 (2006)], which enables an interplay between the gap in the dispersion surface in momentum space and the atomic displ...