Gold Crystals (IMAGE) University of Bath Caption On the left: a crystal coated in gold -- the gold coating allows the magnetic imaging tool to get within nanometers of the material's surface. On the right: a magnetic picture of a segment of the crystal showing the vortices (dark holes) that were studied. Credit University of Bath 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.