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40 papers · 1 filter
Effect of carrier doping on the formation and collapse of magnetic polarons in lightly hole-doped La_{1-x}Sr_xCoO_3
A. Podlesnyak, G. Ehlers, M. Frontzek +7
We investigate the doping dependence of the nanoscale electronic and magnetic inhomogeneities in the hole-doping range 0.002<x<0.1 of cobalt based perovskites, La{1-x}Sr_xCoO_3. Us…
Fractional quantum Hall states at zero magnetic field
Titus Neupert, Luiz Santos, Claudio Chamon +1
We present a simple prescription to flatten isolated Bloch bands with non-zero Chern number. We first show that approximate flattening of bands with non-zero Chern number is possib…
NLO QCD corrections to WWbb production at hadron colliders
A. Denner, S. Dittmaier, S. Kallweit +1
Top-antitop quark pairs belong to the most abundantly produced and precisely measurable heavy-particle signatures at hadron colliders and allow for crucial tests of the Standard Mo…
A method to localize gamma-ray bursts using POLAR
E. Suarez-Garcia, D. Haas, W. Hajdas +10
The hard X-ray polarimeter POLAR aims to measure the linear polarization of the 50-500 keV photons arriving from the prompt emission of gamma-ray bursts (GRBs). The position in the…
Pionic deuterium
Th. Strauch, F. D. Amaro, D. Anagnostopoulos +16
The strong interaction shift and broadening Γ in pionic deuterium have been determined in a high statistics study of the πD(3p - 1s) X-ray transition using a high-resolution cr…
Controlling the effective mass of quantum well states in Pb/Si(111) by interface engineering
Bartosz Slomski, Fabian Meier, Juerg Osterwalder +1
The in-plane effective mass of quantum well states in thin Pb films on a Bi reconstructed Si(111) surface is studied by angle-resolved photoemission spectroscopy. It is found that…