John Singleton

TL;DR: In this paper, magnetoresistance data up to 20 T and magnetisation measurements on the mixed-valence cubic perovskite semiconductor Nd 05 Pb 05 MnO 3 were presented, which demonstrated that the material orders ferromagnetically below 184 K and that around and above this temperature the conductivity is dominated by hopping of localized magnetic polarons, with an activation energy ∼95 meV.

TL;DR: In this paper, it was shown that the hexagonal layer motif [AM{sup III}(C{sub 2} O{sub 4} ]{sub 3}]{sup n-} containing bridging oxalate groups, which has been shown to form a wide variety of compounds with electronically inactive counter-cations having unusual cooperative magnetic properties, can also stabilize lattices containing the organic {pi}-donor BEDT-TTF.

TL;DR: Measurements of the electrical resistivity in single crystals of (Ba,K)Fe2As2 in a magnetic field up to 60 T find that the superconducting properties are in fact quite isotropic, being rather independent of the direction of the applied magnetic fields at low temperature.

TL;DR: In this article, a detailed study of the three-dimensional crystal structure using x-ray diffraction on untwinned crystals combined with structural relaxation calculations was performed, and the authors found evidence for a parent crystal structure with a monoclinic unit cell corresponding to a stacking of layers with a unidirectional in-plane offset, in contrast with the currently assumed trigonal three-layer stacking periodicity.

TL;DR: In this paper, a review of recent studies of charge transfer salts of the ion bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF or ET) is presented.