Tobias Schwaigert

Epitaxially Integrated Electro‐Optic KNbO 3 Thin Films on Silicon

ABSTRACT The absence of a native electro‐optic effect in silicon remains a fundamental limitation for integrated photonics, motivating the integration of ferroelectric oxides as active materials. Here, we report the first epitaxial integration of KNbO 3 thin films on silicon, est...

Above Room Temperature Ferroelectricity in Epitaxially Strained KTaO 3

ABSTRACT Epitaxial strain is a powerful means to engineer emergent phenomena in thin films and heterostructures. Here, we demonstrate that , a cubic perovskite in bulk form, can be epitaxially strained into a highly tunable ferroelectric. films grown commensurate to (001) substra...