Quasiparticle interference in an iron-based superconductor
S. Sykora, Piers Coleman
DOI 10.1103/PhysRevB.84.054501 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We develop a model for the effect of a magnetic field on quasiparticle interference in an iron-based superconductor. Recently, scanning tunneling experiments have been performed on Fe(Se,Te) to determine the relative sign of the superconducting gap from the magnetic-field dependence of quasiparticle scattering amplitudes. Using a simple two-band BCS model, we study three different cases of scattering in a spin-split spectrum. The dominant effect of a magnetic field in iron-based superconductors is caused by the Pauli limiting of conduction electrons. Thereby time-reversal odd scattering is induced which enhances the sign-preserving and depresses the sign-reversing peaks in the quasiparticle interference patterns.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Fe(Se,Te) Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Quasiparticle interference in Fe-based superconductors based on a five-orbital tight-binding model
similarity 0.98Youichi Yamakawa & Hiroshi Kontani
Source status unknown — claims are unverified
Edge states and local electronic structure around an adsorbed impurity in a topological superconductor
similarity 0.94Yuan-Yen Tai et al.
Source status unknown — claims are unverified
Topological superconducting states in monolayer FeSe/SrTiO3
similarity 0.94Ningning Hao & Shun-Qing Shen
Source status unknown — claims are unverified
Tunneling interstitial impurity in iron-chalcogenide-based superconductors
similarity 0.94Huaixiang Huang et al.
Source status unknown — claims are unverified
Impacts of substrate conditions and post-annealing on monolayer iron-based superconductors
similarity 0.92Guanyang He et al.
Source status unknown — claims are unverified
Atomic-scale coexistence of short-range magnetic order and superconductivity in Fe1+ySe0.1Te0.9
similarity 0.92Ramakrishna Aluru et al.
Source status unknown — claims are unverified