M. Jacoby
Jan 31, 2000
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Abstract
Using X-rays to shuffle a sample's electrons in a controlled manner, researchers in Germany have demonstrated a new atom-selective bondbreaking technique. The investigation broadens understanding of elementary processes in chemical physics and ultimately may lead to applications in photochemistry, materials surface modification, and other areas. Conducted by Technical University of Munich physicists, the study shows that a finely tuned light source can be used as a high-tech missile to target—at will—the bond holding a nitrogen molecule together or the bond that fixes an N2 molecule to a metal surface [ Phys. Rev. Lett. , 84 , 374 (2000)]. The Munich research team includes graduate student Ralf Romberg, professor Dietrich Menzel, senior research scientist Peter Feulner, and Norbert Heckmair, a scientific technician. The group also includes two visiting scientists: Sean P. Frigo, Argonne National Laboratory, Argonne, Ill.; and Alexander Ogurtsov, Karkov Institute of Low-Temperature Physics, Karkov, Ukraine...