Scheme of the process (IMAGE) Helmholtz-Zentrum Dresden-Rossendorf Caption When a circularly polarized light pulse (red) hits a micrometre-sized graphene disc (grey), a magnetic field is created for a fraction of an instant (black lines). Credit Lucchesi, Uta (HZDR) Usage Restrictions none 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.