Nearly free electrons in the layered oxide superconductor Ag5Pb2O6

Abstract

We present first measurements of quantum oscillations in the layered oxide superconductor Ag5Pb2O6. From a detailed angular and temperature dependent study of the dHvA effect we determine the electronic structure and demonstrate that the electron masses are very light, m^* is approximately equalt to 1.2 m_e. The Fermi surface we observe is essentially that expected of nearly-free electrons - establishing Ag5Pb2O6 as the first known example of a monovalent, nearly-free electron superconductor at ambient pressure.

arXiv comment4 pages, 3 figures

References in corpus (4)

• Detailed Topography of the Fermi Surface of Sr2RuO4
• Exceptional type-I superconductivity of the layered silver oxide Ag${}_5$Pb${}_2$O${}_6$
• Non-linear Temperature Dependence of Resistivity in Single Crystalline Ag${}_5$Pb${}_2$O${}_6$
• Electronic band structure and Fermi surface of Ag${}_5$Pb${}_2$O${}_6$

Cited by in corpus (3)

• Properties of the Nearly Free Electron Superconductor Ag5Pb2O6 Inferred from Fermi Surface Measurements
• Element-Specific Orbital Character in a Nearly-Free-Electron Superconductor Ag${}_5$Pb${}_2$O${}_6$ Revealed by Core-Level Photoemission
• Transport properties of Ag5Pb2O6: a three-dimensional electron-gas-like system with low-carrier-density