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Showing 2009 · cond-mat.supr-conShow all

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cond-mat.supr-con2009★ 43 cited

Droplet-like Fermi surfaces in the anti-ferromagnetic phase of EuFeAs, an Fe-pnictide superconductor parent compound

S. de Jong, E. van Heumen, S. Thirupathaiah +15

Using angle resolved photoemission it is shown that the low lying electronic states of the iron pnictide parent compound EuFeAs are strongly modified in the magnetically or…

cond-mat.supr-con2009★ 64 cited

Direct observation of a nodeless superconducting energy gap in the optical conductivity of iron-pnictides

B. Gorshunov, D. Wu, A. A. Voronkov +7

The temperature-dependent optical reflectivity and complex transmissivity of an epitaxially grown Ba(FeCo)As thin film were measured and the optical conduct…

cond-mat.supr-con2009★ 24 cited

Unusual disorder effects in superconducting LaFeAs_(1-d)O_0.9F_0.1 as revealed by NMR spectroscopy

F. Hammerath, S. -L. Drechsler, H. -J. Grafe +6

We report 75As NMR measurements of the spin-lattice relaxation in the superconducting state of LaFeAsO_(0.9)F_(0.1) and As-deficient LaFeAs_(1-d)O_0.9F_0.1. The temperature behavio…

cond-mat.supr-con2009★ 46 cited

Symmetry and disorder of the vitreous vortex lattice in an overdoped BaFe_{2-x}Co_xAs_2 superconductor: Indication for strong single-vortex pinning

D. S. Inosov, T. Shapoval, V. Neu +14

The disordered flux line lattice in single crystals of the slightly overdoped aFe_{2-x}Co_xAs_2 (x = 0.19, Tc = 23 K) superconductor is studied by magnetization measurements, small…

cond-mat.supr-con2009★ 18 cited

Critical currents in weakly textured MgB2: Nonlinear transport in anisotropic heterogeneous media

M. Eisterer, W. Hassler, P. Kovac

A model for highly non-linear transport in heterogeneous media consisting of anisotropic particles with a preferred orientation is proposed and applied to the current transport in…

cond-mat.supr-con2009★ 64 cited

Orbital character variation of the Fermi surface and doping dependent changes of the dimensionality in BaFe2-xCoxAs2 from angle-resolved photoemission spectroscopy

S. Thirupathaiah, S. de Jong, R. Ovsyannikov +12

From a combination of high resolution angle-resolved photoemission spectroscopy and density functional calculations, we show that BaFe2As2 possesses essentially two-dimensional ele…