activity
20122017
most citedScanning tunneling spectroscopy of superconducting LiFeAs single crystals: Evidence for two nodeless energy gaps and coupling to a bosonic mode

80 citations · 258 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.supr-con2017★ 31 cited

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…

cond-mat.mes-hall2016★ 16 cited

Dispersing artifacts in FT-STS: a comparison of set point effects across acquisition modes

A J Macdonald, Y-S Tremblay-Johnston, S Grothe +4

Fourier transform scanning tunneling spectroscopy (FT-STS), or quasiparticle interference (QPI), has become an influential tool for the study of a wide range of important materials…

cond-mat.supr-con2013★ 49 cited

Sign inversion in the superconducting order parameter of LiFeAs inferred from Bogoliubov quasiparticle interference

Shun Chi, S. Johnston, G. Levy +10

Quasiparticle interference (QPI) by means of scanning tunneling microscopy/spectroscopy (STM/STS), angle resolved photoemission spectroscopy (ARPES), and multi-orbital tight bind-…

cond-mat.mes-hall2013★ 28 cited

Quantifying many-body effects by high-resolution Fourier transform scanning tunneling spectroscopy

S. Grothe, S. Johnston, Shun Chi +3

Many-body phenomena are ubiquitous in solids, as electrons interact with one another and the many excitations arising from lattice, magnetic, and electronic degrees of freedom. The…

cond-mat.supr-con2012★ 54 cited

Bound States of Defects in Superconducting LiFeAs Studied by Scanning Tunneling Spectroscopy

S. Grothe, Shun Chi, P. Dosanjh +5

Defects in LiFeAs are studied by scanning tunneling microscopy (STM) and spectroscopy (STS). Topographic images of the five predominant defects allow the identification of their po…

cond-mat.supr-con2012★ 80 cited

Scanning tunneling spectroscopy of superconducting LiFeAs single crystals: Evidence for two nodeless energy gaps and coupling to a bosonic mode

Shun Chi, S. Grothe, Ruixing Liang +5

The superconducting compound, LiFeAs, is studied by scanning tunneling microscopy and spectroscopy. A gap map of the unreconstructed surface indicates a high degree of homogeneity…