Now showing items 1-3 of 3

• #### Dopant clustering, electronic inhomogeneity, and vortex pinning in iron-based superconductors ﻿

(American Physical Society (APS), 2013)
We use scanning tunneling microscopy to map the surface structure, nanoscale electronic inhomogeneity, and vitreous vortex phase in the hole-doped superconductor Sr0.75K0.25Fe2As2 with Tc=32 K. We find that the low-T cleaved ...
• #### Fermi Surface and Pseudogap Evolution in a Cuprate Superconductor ﻿

(American Association for the Advancement of Science (AAAS), 2014)
The unclear relationship between cuprate superconductivity and the pseudogap state remains an impediment to understanding the high transition temperature (Tc) superconducting mechanism. Here, we used magnetic field–dependent ...
• #### Scanning Tunnelling Microscopy Imaging of Symmetry-breaking Structural Distortion in the Bismuth-based Cuprate Superconductors ﻿

(Nature Publishing Group, 2012)
A complicating factor in unravelling the theory of high-temperature (high-$T_c$) superconductivity is the presence of a ‘pseudogap’ in the density of states, the origin of which has been debated since its discovery. Some ...