Imaging GHz surface acoustic wave modes in electrostricted LaAlO${}_3$/SrTiO${}_3$ heterostructures

Ranjani Ramachandran, Sayanwita Biswas, Prithwijit Mandal +6

The LaAlO${}_3$/SrTiO${}_3$ (LAO/STO) interface hosts a gate-tunable superconducting two-dimensional electron gas (2DEG) which can be programmed to create quantum devices such as balli…