Competition between Electron-Phonon coupling and Spin Fluctuations in superconducting hole-doped BiOCuS

BiOCuS is a band insulator that becomes metallic upon hole doping. Superconductivity was recently reported in doped BiOCu$_{1-x}$S and attributed to spin fluctuations as a pairing mechanism. Based on first principles calculations of the electron-phonon coupling, we argue that the latter is very strong in this material, and probably drives superconductivity, which is however strongly depressed by the proximity to magnetism. We find however that BiOCu$_{1-x}$S is a quite unique compound where both a conventional phonon-driven and an unconventional triplet superconductivity are possible, and compete with each other. We argue that, in this material, it should be possible to switch from conventional to unconventional superconductivity by varying such parameters as doping or pressure

Erratum: A microscopic view on the Mott transition in chromium-doped V 2 O 3

Nature Communications 1, Article number: 105 (2010); published: 02 November 2010; updated: 17 January 2012. In Figure 2 of this Article, panel labels c and d were inadvertently switched. A typographical error was also introduced in the last sentence of the legend, which should have read 'The scale bar in panel c represents 10 μm'

Air pollution and lung cancer incidence in 17 European cohorts: prospective analyses from the European Study of Cohorts for Air Pollution Effects (ESCAPE)

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Normal and superconducting state properties of B-doped diamond from first-principles

In this paper we give a theoretical description of the superconducting and normal-state properties of hole-doped diamond based on ab initio calculations. Our aim is to provide a useful reference to compare the theoretical predictions with the experimental data. We also discuss the advantages and drawbacks of the virtual crystal approximation (VCA), which we adopted to model the boron doping, comparing our results with supercell calculations. (c) 2006 NIMS and Elsevier Ltd. All rights reserved

Normal and superconducting state properties of B-doped diamond from first-principles

In this paper we give a theoretical description of the superconducting and normal-state properties of hole-doped diamond based on ab initio calculations. Our aim is to provide a useful reference to compare the theoretical predictions with the experimental data. We also discuss the advantages and drawbacks of the virtual crystal approximation (VCA), which we adopted to model the boron doping, comparing our results with supercell calculations