Figure 1 (IMAGE) Osaka University Caption (a) Normal structure of α-tetragonal boron. While icosahedra of boron (gray) have an ordered atomic arrangement, interstitial boron atoms (red) are randomly arranged. (b) Interstitial atoms are arranged in an ordered form in which the linear chains of interstitial atoms with different heights (red and blue) are alternately arranged. Credit Osaka University 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.