Superconductivity in iron compounds

GR Stewart - Reviews of Modern Physics, 2011 - APS
Kamihara and coworkers' report of superconductivity at T c= 26 K in fluorine-doped
LaFeAsO inspired a worldwide effort to understand the nature of the superconductivity in this …

New high-temperature superconductors based on rare-earth and transition metal oxyarsenides and related phases: synthesis, properties and simulations

AL Ivanovskii - Physics-Uspekhi, 2008 - iopscience.iop.org
The discovery in February 2008 of superconductivity with the transition temperature about
26 K in fluorine-doped oxyarsenide LaO 1–x F x FeAs stimulated numerous studies of …

Neutron-Diffraction Measurements of Magnetic Order and a Structural Transition <?format ?>in the Parent Compound of FeAs-Based High-Temperature …

Q Huang, Y Qiu, W Bao, MA Green, JW Lynn… - Physical Review Letters, 2008 - APS
The recent discovery of superconductivity in (Ba, K) Fe 2 As 2, which crystallizes in the ThCr
2 Si 2 (122) structure as compared with the LnFeAsO (Ln is lanthanide) systems that …

Superconductivity up to 29 K in SrFe2As2 and BaFe2As2 at high pressures

PL Alireza, YTC Ko, J Gillett, CM Petrone… - Journal of Physics …, 2008 - iopscience.iop.org
We report the discovery of superconductivity at high pressure in SrFe 2 As 2 and BaFe 2 As
2. The superconducting transition temperatures are up to 27 K in SrFe 2 As 2 and 29 K in …

Pressure-induced volume-collapsed tetragonal phase of as seen via neutron scattering

A Kreyssig, MA Green, Y Lee, GD Samolyuk… - Physical Review B …, 2008 - APS
Recent investigations of the superconducting iron-arsenide families have highlighted the
role of pressure, be it chemical or mechanical, in fostering superconductivity. Here we report …

Lattice and magnetic instabilities in : A single-crystal neutron diffraction study

AI Goldman, DN Argyriou, B Ouladdiaf, T Chatterji… - Physical Review B …, 2008 - APS
Neutron diffraction measurements of a high-quality single crystal of CaFe 2 As 2 are
reported. A sharp transition was observed between the high-temperature tetragonal and low …

Strong Coupling of the Fe-Spin State and the As-As Hybridization<? format?> in Iron-Pnictide Superconductors from First-Principle Calculations

T Yildirim - Physical Review Letters, 2009 - APS
From first-principles calculations, we unravel surprisingly strong interactions between
arsenic ions in iron pnictides, the strength of which is controlled by the Fe-spin state …

Origin of the Spin Density Wave Instability in () as Revealed <?format ?>by Optical Spectroscopy

WZ Hu, J Dong, G Li, Z Li, P Zheng, GF Chen, JL Luo… - Physical Review Letters, 2008 - APS
We performed optical spectroscopy measurement on single crystals of BaFe 2 As 2 and
SrFe 2 As 2, the parent compounds of FeAs-based superconductors. Both are found to be …

Three orbital model for the iron-based superconductors

M Daghofer, A Nicholson, A Moreo, E Dagotto - Physical Review B …, 2010 - APS
The theoretical need to study the properties of the Fe-based high-T c superconductors using
reliable many-body techniques has highlighted the importance of determining what is the …

Structural and magnetic phase transitions in the ternary iron arsenides SrFe2As2 and EuFe2As2

M Tegel, M Rotter, V Weiss… - Journal of Physics …, 2008 - iopscience.iop.org
The structural and magnetic phase transitions of the ternary iron arsenides SrFe 2 As 2 and
EuFe 2 As 2 were studied by temperature-dependent x-ray powder diffraction and 57 Fe …