Atomic coexistence of superconductivity and incommensurate magnetic order in the pnictide Ba(Fe1−xCox)2As2
Y. Laplace, J. Bobroff, F. Rullier-Albenque, D. Colson, A. Forget
DOI 10.1103/PhysRevB.80.140501 · 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
A75s nuclear magnetic resonance (NMR) and susceptiblity were measured in a Ba(Fe1−xCox)2As2 single crystal for x=6%. NMR spectra and relaxation rates allow to show that all Fe sites experience an incommensurate magnetic ordering below T=31 K. Comparison with undoped compound allows to estimate a typical moment of 0.05μB. Anisotropy of the NMR widths can be interpreted using a model of incommensurability with a wave vector (1/2−ε,0,l) with ε of the order of 0.04. Below TC=21.8 K, a full volume superconductivity develops as shown by susceptibility and relaxation rate, and magnetic order remains unaffected, demonstrating coexistence of both states on each Fe site.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba(Fe1-xCox)2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 21.8 | Pressure not reported | onset |
Similar papers
Atomic coexistence of superconductivity and incommensurate magnetic order in the Ba(Fe1-xCox)2As2 pnictide
similarity 1.00Y. Laplace et al. · 2009 · arXiv:0906.2125
Source status unknown — claims are unverified
Observation of anisotropic diamagnetism above the superconducting transition in iron pnictide Ba1−xKxFe2As2 single crystals due to thermodynamic fluctuations
similarity 0.96J. Mosqueira et al.
Source status unknown — claims are unverified
Anisotropy of the iron pnictide superconductor Ba(Fe1−xCox)2As2 (x=0.074, Tc=23 K)
similarity 0.95M. A. Tanatar et al.
Source status unknown — claims are unverified
Evolution of structure and superconductivity in Ba(Ni1−xCox)2As2
similarity 0.95Chris Eckberg et al.
Source status unknown — claims are unverified
Electron doping dependence of the anisotropic superconductivity in BaFe2−xNixAs2
similarity 0.95Zhaosheng Wang et al.
Source status unknown — claims are unverified
Coexistence and Competition of the Short-Range Incommensurate Antiferromagnetic Order with the Superconducting State of BaFe2−xNixAs2
similarity 0.95Huiqian Luo et al.
Source status unknown — claims are unverified