2017/08/31 by Youcheng Wang, Idan Tamir, D. Shahar +2 · 1 citation
Physics and Astronomy · #Atomic physics #Condensed matter physics #Cyclotron #Cyclotron resonance #Josephson effect #Magnetic field #Magnetic properties of thin films #Materials science #Metal #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Resonance (particle physics) #Superconductivity #Supercurrent #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.120.167002
published as Phys. Rev. Lett. 120, 167002 (2018) · 3 figures in the manuscript and 8 supplementary figures
arxiv created 2018/04/20 · openalex publication_date 2018/04/20 · arxiv updated 2018/04/25 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/06
It is observed that many thin superconducting films with not too high disorder level (generally RN/□<2000 Ω) placed in magnetic field show an anomalous metallic phase where the resistance is low but still finite as temperature goes to zero. Here we report in weakly disordered amorphous InOx thin films that this anomalous metal phase possesses no cyclotron resonance and hence non-Drude electrodynamics. The absence of a finite frequency resonant mode can be associated with a vanishing downstream component of the vortex current parallel to the supercurrent and an emergent particle-hole symmetry of this metal, which establishes its non-Fermi-liquid character.