Figure (IMAGE) Osaka University Caption Pyrochlore lattice without/with distortions (left/right panels). As the result of the distortions, ferromagnetic coupling (blue line) and anti-ferromagnetic coupling (red line) emerge. The ferromagnetic/anti-ferromagnetic couplings tend to make spins parallel/anti-parallel. Then, spins of morybdenums placed on the corners of the tetrahedrons exhibit glassy, disordered configurations. 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.