Microwave Spectroscopy Evidence of Superconducting Pairing in the Magnetic-Field-Induced Metallic State of InO${}_x$ Films at Zero Temperature

Wei Liu, LiDong Pan, Jiajia Wen +3

We investigate the field tuned quantum phase transition in a 2D low-disorder amorphous InO${}_x$ film in the frequency range of 0.05 to 16 GHz employing microwave spectroscopy. In th…