41 citations · 235 across the 15 of their papers we have counts for
6 papers · 1 filter
Imaging the Real Space Structure of the Spin Fluctuations in an Iron-based superconductor
Shun Chi, Ramakrishna Aluru, Stephanie Grothe +8
Spin fluctuations are a leading candidate for the pairing mechanism in high temperature superconductors, supported by the common appearance of a distinct resonance in the spin susc…
Towards a quantitative description of tunneling conductance of superconductors: application to LiFeAs
A. Kreisel, R. Nelson, T. Berlijn +11
Since the discovery of iron-based superconductors, a number of theories have been put forward to explain the qualitative origin of pairing, but there have been few attempts to make…
Impact of Iron-site defects on Superconductivity in LiFeAs
Shun Chi, Ramakrishna Aluru, Udai Raj Singh +10
In conventional s-wave superconductors, only magnetic impurities exhibit impurity bound states, whereas for an s+- order parameter they can occur for both magnetic and non-magnetic…
Structural and electronic properties of ultrathin FeSe films grown on BiSe(0001) studied by STM/STS
U. R. Singh, J. Warmuth, V. Markmann +2
We report scanning tunnelling microscopy and spectroscopy (STM/STS) studies on one and two unit cell (UC) high FeSe thin films grown on BiSe(0001). In our thin films, we fi…
Evidence for Orbital Order and its Relation to Superconductivity in FeSe0.4Te0.6
Udai Raj Singh, Seth C. White, Stefan Schmaus +4
The emergence of nematic electronic states accompanied by a structural phase transition is a recurring theme in many correlated electron materials, including the high-temperature c…
Spatial Inhomogeneity of the Superconducting Gap and Order Parameter in FeSe_{0.4}Te_{0.6}
U. R. Singh, S. C. White, S. Schmaus +4
We have performed a low temperature scanning tunneling microscopy and spectroscopy study of the iron chalcogenide superconductor FeSe_{0.4}Te_{0.6} with T_{C}~14 K. Spatially resol…