Scanned Josephson Tunneling Microscopy Studies of Copper-Oxide High Temperature Superconductivity

Session

Stream 4 (AFM): New Frontiers in Quantum Matter Visualization

Authors

Dr Shane O'Mahony (5), Mr Wangping Ren (6), Dr Weijiong Chen (6), Dr Yi Xue Chong (1), Dr Xiaolong Liu (1), Dr Stephen David Edkins (4), Dr Mohammad Hamidian (2), Dr Hiroshi Eisaki (3), Prof. Shin-ichi Uchida (7), Prof. JC Séamus Davis (5, 6, 1, 8)

Affiliations

1. Cornell University
2. Harvard University
3. National Institute of Advanced Industrial Science and Technology
4. Stanford University
5. University College Cork
6. University of Oxford
7. University of Tokyo
8. Max-Planck Institute for Chemical Physics of Solids

Keywords

Cuprates, High temperature superconductivity, STM, Scanned Josephson Tunneling Microscopy.

Abstract text

In all cuprate superconducting compounds, hole doping of the CuO₂ plane disrupts the magnetic order of the pristine Mott insulating state while retaining antiferromagnetic superexchange interactions. These interactions are hypothesized to mediate the high temperature superconductivity. Here we discuss recent developments in scanned Josephson tunnel microcopy (SJTM) which allow direct, atomic scale, visualization of the strongly correlated superfluid found in these systems as well as the magnetic properties. The research objective is to thereby visualize the influence on both the strong correlation pairing and magnetic fluctuations of nanoscale perturbations such as crystal defects and impurities. This could reveal the connection between strong correlation pairing and magnetic fluctuations at the atomic scale in the cuprates.