Incommensurate itinerant antiferromagnetic excitations and spin resonance in the FeTe0.6Se0.4 superconductor
D. N. Argyriou, A. Hiess, A. Akbari, I. Eremin, M. M. Korshunov, Jin Hu, Bin Qian, Zhiqiang Mao, Yiming Qiu, Collin Broholm, W. Bao
DOI 10.1103/PhysRevB.81.220503 · 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 report on inelastic neutron-scattering measurements that find itinerantlike incommensurate magnetic excitations in the normal state of superconducting FeTe0.6Se0.4 (Tc=14 K) at wave vector Qinc=(1/2±ϵ,1/2∓ϵ) with ϵ=0.09(1). In the superconducting state only the lower energy part of the spectrum shows significant changes by the formation of a gap and a magnetic resonance that follows the dispersion of the normal-state excitations. We use a four band model to describe the Fermi-surface topology of this iron-based superconductors with the extended s(±) symmetry and find that it qualitatively captures the salient features of these data.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| FeTe0.6Se0.4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14 | Pressure not reported | unknown |
Similar papers
Spin Gap and Resonance at the Nesting Wave Vector in Superconducting FeSe0.4Te0.6
similarity 0.96Yiming Qiu et al.
Source status unknown — claims are unverified
Modified magnetism within the coherence volume of superconducting Fe1+δSexTe1−x
similarity 0.96J. Leiner et al.
Source status unknown — claims are unverified
Effect of impurity substitution on band structure and mass renormalization of the correlated FeTe0.5Se0.5 superconductor
similarity 0.95S. Thirupathaiah et al.
Source status unknown — claims are unverified
Superconductivity at Tc∼14 K in single-crystalline FeTe0.61Se0.39
similarity 0.95T. Taen et al.
Source status unknown — claims are unverified
Two-dimensional-like superconducting properties and weak antilocalization transport in FeSe0.4Te0.6 single crystals: Topology-driven magnetotransport
similarity 0.95Chin-Wei Lin et al.
Source status unknown — claims are unverified
Spatial inhomogeneity of the superconducting gap and order parameter in FeSe0.4Te0.6
similarity 0.95U. R. Singh et al.
Source status unknown — claims are unverified