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Exploring Ferroelectric Quantum Criticality and Superconductivity in KTaO3
(2018)Electron-doped cubic perovskite KTaO3 has recently been shown to become superconducting at temperatures below 50 mK [1]. In the closely related material SrTiO3, a ferroelectric quantum critical point was proposed to be the origin of superconductivity [2]. In this work, using first-principles calculations, we show that a ferroelectric quantum critical point emerges with electron doping in KTaO3, lying at doping values close to the emergence ...Master Thesis