Researchers capture an image of negative capacitance in action

Negative capacitance in action (photo: Pablo Garcia Fernandez & Javier Junquera, Universidad de Cantabria) and Sayeef Salahuddin

For the first time ever, an international team of researchers–led by Prof. Sayeef Salahuddin–imaged the microscopic state of negative capacitance. This novel result provides researchers with fundamental, atomistic insight into the physics of negative capacitance, which could have far-reaching consequences for energy-efficient electronics.  “The upshot is that the opposite relation between charge and voltage could locally enhance the voltage across the common dielectric material,” said Salahuddin. “The voltage ‘amplification’ gained could be used to reduce the supply voltage requirement in a transistor, thus making computers and other electronic devices more energy-efficient.”