Pattern in pink and dark grey (IMAGE) University of Göttingen Caption Artist's impression of the illumination of a magnesium oxide crystal lattice with strong triangular symmetrical laser fields Credit Murat Sivis Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.