Supramolecular-assembly-induced Abrupt Phase Transitions (IMAGE) Kumamoto University Caption By introducing a chiral carboxylic acid as a hydrogen-bond donor, the team induced precise magnetic switching behavior in cobalt-iron molecular assemblies, controlled by temperature changes. Credit Yoshihiro Sekine, Shinya Hayami, Kumamoto University Usage Restrictions Only to be used in content reporting on this research. Credit must be given to the creator. License Original 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.