Pairing insights in iron-based superconductors from scanning tunneling microscopy

Abstract

Scanning tunneling microscopy (STM) has made tremendous progress in the study and understanding of both classical and unconventional superconductors. This has motivated a rapidly growing effort to apply the same techniques to the iron-based high-Tc superconductors since their discovery in 2008. Five years have brought exciting advances in imaging and spectroscopic investigation of this new class of materials. In this review, we focus on several recent STM contributions to the identification of the gap symmetry and pairing glue. We highlight the unique capabilities and challenges still ahead for STM studies of iron-based superconductors.

12 pages,8 figures.to be appeared in Current Opinion in Solid State & Materials Science

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Cited by in corpus (6)

• Sign inversion in the superconducting order parameter of LiFeAs inferred from Bogoliubov quasiparticle interference
• Imaging the Electron-Boson Coupling in Superconducting FeSe
• Using electron irradiation to probe iron - based superconductors
• Friedel Oscillations of Vortex Bound States Under Extreme Quantum Limit in KCa2Fe4As4F2
• Multiple energy gap features of superconducting FeSe investigated by tunneling spectroscopy
• From Cooper-pair glass to unconventional superconductivity: a unified approach to cuprates and pnictides