Alex Müller, the high-Tc field-effect transistor and electric-field gated quantum materials

Alex Muller and Georg Bednorz are widely recognized for their trailblazing discovery of high-temperature superconductivity and their groundbreaking research on SrTiO3. In comparison, their substantial contributions to inventing the high-Tc superconducting field-effect transistor remain relatively unknown. Nevertheless, their efforts were crucial in developing the electric field effect into a valuable tool for studying a broad spectrum of complex materials. This article provides a brief overview of these developments and of the current status in this field, with a particular focus on Alex Muller's visionary role in advancing the field following the discovery of high-temperature superconductivity.