Faced with global issues concerning the environment and energy and the need to build a sustainable society, we must develop new technologies for generating and using energy efficiently. Yoshinori Tokura, group director of the Correlated Electron Research Group and the Cross-correlated Materials Research Group at RIKEN’s Advanced Science Institute, Japan, and his colleagues are working to develop electronic technologies based on new principles to allow information processing to be performed with minimal power consumption and more efficient conversion of light and heat to electrical power.

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