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80 papers · 1 filter
Unconventional electronic reconstruction in undoped (Ba,Sr)FeAs across the spin density wave transition
M. Yi, D. H. Lu, J. G. Analytis +10
Through a systematic high resolution angle-resolved photoemission study of the iron pnictide compounds (Ba,Sr)FeAs, we show that the electronic structures of these compound…
On interband pairing in multiorbital systems
Adriana Moreo, Maria Daghofer, Andrew Nicholson +1
The discovery of high- superconductivity in the pnictides, materials with a Fermi surface determined by several bands, highlights the need to understand how superconductivity…
Electronic structure of Ba(Fe,Ru)2As2 and Sr(Fe,Ir)2As2 alloys
Lijun Zhang, D. J. Singh
The electronic structures of Ba(Fe,Ru)As and Sr(Fe,Ir)As are investigated using density functional calculations. We find that these systems behave as coherent alloy…
The Electronic Phase Diagram of the Iron-based High Tc Superconductor Ba(Fe(1-x)Co(x))2As2 Under Hydrostatic Pressure (0 < x <0.099)
K. Ahilan, F. L. Ning, T. Imai +4
We report comprehensive resistivity measurements of single crystalline samples of the Ba(Fe(1-x)Co(x))2As2 high Tc superconductor under hydrostatic pressure up to 2.75 GPa and over…
Properties of KCoAs and Alloys with Fe and Ru: Density Functional Calculations
D. J. Singh
Electronic structure calculations are presented for KCoAs and alloys with KFeAs and KRuAs. These materials show electronic structures characteristic of cohe…
Suppression of spin density wave by isoelectronic substitution in PrFe(1-x)Ru(x)AsO
Michael A. McGuire, David J. Singh, Athena S. Sefat +2
We have studied the effects of the isoelectronic substitution of Ru for Fe in polycrystalline samples of the spin density wave (SDW) material PrFeAsO. Crystal structures from powde…