New gate-tunable and high-mobility devices based on strontium titanate

Strontium titanate (SrTiO3), an oxide of strontium and titanium with a perovskite structure, has many advantageous properties, including spin-orbit coupling, electrical tunability, and unconventional superconductivity. Compared to the superconductivity of conventional metals, such as aluminum or niobium, the superconductivity of SrTiO3 persists at low electron densities, at which it can be controlled via the application of electrical voltages.

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