Visualising the Charge and Cooper-Pair Density Waves in Cuprates  [electronic resource] /
Edkins, Stephen.author.
  This thesis reports on the use of scanning tunnelling microscopy to elucidate the atomic-scale electronic structure of a charge density wave, revealing that it has a d-symmetry form factor, hitherto unobserved in nature. It then details the development of an entirely new class of scanned probe: the scanning Josephson tunnelling microscope. This scans the Josephson junction formed between a cuprate superconducting microscope tip and the surface of a cuprate sample, thereby imaging the superfluid density of the sample with nanometer resolution. This novel method is used to establish the existence of a spatially modulated superconducting condensate, something postulated theoretically over half a century ago but never previously observed.
Includes bibliographical references.
Unconventional Superconductivity and Density Wave Order in Cuprates -- Spectroscopic-Imaging STM (SI-STM) -- Sub-Lattice Segregated SI-STM in Cuprates -- Atomic-scale Electronic Structure of the Cuprate d -symmetry Form Factor Charge Density Wave -- The Scanned Josephson Tunnelling Microscope -- Pair Density Waves in Cuprates -- Detection of a Cooper-Pair Density Wave in Bi2Sr2CaCu2O8+δ -- Summary and Future Directions.
  This thesis reports on the use of scanning tunnelling microscopy to elucidate the atomic-scale electronic structure of a charge density wave, revealing that it has a d-symmetry form factor, hitherto unobserved in nature. It then details the development of an entirely new class of scanned probe: the scanning Josephson tunnelling microscope. This scans the Josephson junction formed between a cuprate superconducting microscope tip and the surface of a cuprate sample, thereby imaging the superfluid density of the sample with nanometer resolution. This novel method is used to establish the existence of a spatially modulated superconducting condensate, something postulated theoretically over half a century ago but never previously observed.
Superconductivity.
Superconductors.
Spectroscopy.
Microscopy.
Strongly Correlated Systems, Superconductivity.
Spectroscopy and Microscopy.