437 citations · 1.4k across the 13 of their papers we have counts for
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Structural and electronic phase diagrams of CeFeAsO1-xFx and SmFeAsO1-xFx
Hemke Maeter, Jorge Enrique Hamann Borrero, Til Goltz +17
We have studied the structural and electronic phase diagrams of CeFeAsO1-xFx and SmFeAsO1-xFx by a detailed analysis of muon spin relaxation experiments, synchrotron X-ray diffract…
Pr magnetism and its interplay with the Fe spin density wave in PrFeAsO
U. Stockert, N. Leps, L. Wang +4
We have studied the magnetism of the Pr3+ ions in PrFeAsO_1-xF_x (x = 0; 0.15) and its interaction with the Fe magnetic order (for x = 0). Specific heat data confirm the presence o…
Calorimetric study of the superconducting and normal state properties of Ca(Fe1-xCox)2As2
M. Abdel-Hafiez, L. Harnagea, S. Singh +5
We present a calorimetric study on single crystals of Ca(Fe1-xCox)2As2 (x = 0, 0.032, 0.051, 0.056, 0.063, and 0.146). The combined first order spin-density wave/structural transit…
Phase diagram of iron-arsenide superconductors Ca(Fe1-xCox)2As2 (0 <= x <= 0.2)
L. Harnagea, S. Singh, G. Friemel +9
Platelet-like single crystals of the Ca(Fe1-xCox)2As2 series having lateral dimensions up to 15 mm and thickness up to 0.5 mm were obtained from the high temperature solution growt…
Thermal expansion of LaFeAsO: Evidence for high-temperature fluctuations
L. Wang, U. Kohler, N. Leps +8
We present measurements of the thermal expansion coefficient alpha of polycrystalline LaFeAsO1-xFx (x <= 0.1). The magnetic and structural transitions of the samples with x <= 0.04…
Electronic properties of LaOFFeAs in the normal state probed by NMR/NQR
H. -J. Grafe, G. Lang, F. Hammerath +12
We report 139La, 57Fe and 75As nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements on powders of the new LaO1-xFxFeAs superconductor for x = 0 and…
Synthesis and physical properties of
Agnieszka Kondrat, Jorge Enrique Hamann-Borrero, Norman Leps +9
We have prepared the newly discovered Fe-based superconducting material () in polycrystalline form and have investigated the samples by mean…
Local antiferromagnetic correlations in the iron pnictide superconductors LaFeAsO{1-x}F{x} and Ca(Fe,Co)2As2 as seen via normal-state susceptibility
R. Klingeler, N. Leps, I. Hellmann +11
We have studied the interplay of magnetism and superconductivity in LaFeAsOF and Ca(FeCo)As. While antiferromagnetic spin density wave formation is…
The electronic phase diagram of the LaO1-xFxFeAs superconductor
H. Luetkens, H. -H. Klauss, M. Kraken +16
The competition of magnetic order and superconductivity is a key element in the physics of all unconventional superconductors, e.g. in high-transition-temperature cuprates 1, heavy…
As NMR studies of superconducting LaOFFeAs
H. -J. Grafe, D. Paar, G. Lang +8
We have performed 75As Nuclear Magnetic Resonance (NMR) measurements on aligned powders of the new LaO0.9F0.1FeAs superconductor. In the normal state, we find a strong temperature…
Optical Study of LaO_0.9F_0.1FeAs: Evidence for a Weakly Coupled Superconducting State
S. -L. Drechsler, M. Grobosch, K. Koepernik +10
We have studied the reflectance of the recently discovered superconductor LaO_0.9F0.FeAs in a wide energy range from the far infrared to the visible regime. We report on the observ…
Commensurate Spin Density Wave in LaOFeAs: A Local Probe Study
H. -H. Klauss, H. Luetkens, R. Klingeler +14
We present a detailed study on the magnetic order in the undoped mother compound LaOFeAs of the recently discovered Fe-based superconductor LaOFFeAs. In particular, we…
Field and Temperature Dependence of the Superfluid Density in LaO_{1-x}F_xFeAs Superconductors: A Muon Spin Relaxation Study
H. Luetkens, H. -H. Klauss, R. Khasanov +10
We present zero field and transverse field \muSR experiments on the recently discovered electron doped Fe-based superconductor LaO_{1-x}F_xFeAs. The zero field experiments on under…