In-gap features in superconducting LaAlO${}_3$-SrTiO${}_3$ interfaces observed by tunneling spectroscopy

Lukas Kuerten, Christoph Richter, Narayan Mohanta +4

We identified quasiparticle states at well-defined energies inside the superconducting gap of the electron system at the LaAlO${}_3$-SrTiO${}_3$ interface using tunneling spectroscopy.…