Dataset for Revealing isotropic abundant low-energy excitations in UTe2 through complex microwave surface impedance

All experimental transmission data (S_21) in Revealing isotropic abundant low-energy excitations in UTe2 through complex microwave surface impedance was collected using a Keysight vector network analyzer (VNA). The transmission parameter was collected for several modes and temperatures. The raw S_21 data was processed into resonant frequency and quality factor using a Lorentzian fit to S_21 vs frequency for each mode and temperature.