Highly crystalline superconducting TiN resonators grown on thermally reconstructed sapphire
The episode discusses research showing that thermally reconstructing sapphire substrates via direct laser heating is a chemical-free alternative to cleaning for growing highly crystalline titanium nitride (TiN) films. The hosts conclude this method provides high-quality superconducting resonators with performance comparable to chemically cleaned substrates, suggesting thermal control is a robust platform for scalable quantum hardware.