Edgar Gomes earned his PhD at the University of Coimbra in Portugal under the supervision of Carlos Duarte. He then travelled to the USA to train as a postdoctoral fellow in the laboratory of Gregg Gundersen at Columbia University in New York. Before moving back to Portugal in 2014, Edgar was a group leader in the Myology Institute at the University of Pierre and Marie Curie in Paris (France) a...

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E. ANTOINE,l* V. CILIA,2 J. R. MEUNIER,3 J. GUEZENNEC,l F. LESONGEUR,4 AND G. BARBIER4 Laboratoire de Biotechnologie des Microorganismes Hydrothermaux, and Laboratoire de Caracttrisation des Microorganismes Marins, DRVIW, Centre IFREMER de Brest, 29280 Plouzani, UPR9042 CNRS, Universitt Pierre et Marie Curie, Station Biologique de Roscofi 29680 Roscog and L 'OREAL, Recherche Avancte, DCSP, Phot...

The phase diagram of quarter-hole-doped perovskite manganites is investigated using the double-exchange model. An exotic striped type-II multiferroic phase, where 25% of the nearest-neighbor spin couplings are orthogonal to each other, is found in the narrow-bandwidth region. Comparing with the spiral-spin ordering phase of undoped manganites, the multiferroic Curie temperature of the new phase...

O. Campàs, 2 Y. Kafri, 3 K. B. Zeldovich, J. Casademunt, and J.-F. Joanny Institut Curie, UMR CNRS 168, 26 rue d’Ulm 75248 Paris Cedex 05 France. Departament d’ECM, Universitat de Barcelona, Avinguda Diagonal 647, E-08028 Barcelona, Spain. Physics Department, Technion, Haifa 32000, Israel. Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford St., Cambridge, MA 02138 USA. ...

C. Gutlé, J. L. Heully, J. B. Krieger, and A. Savin Laboratoire de Chimie Théorique, CNRS and Université Pierre et Marie Curie, F-75252 Paris, France Laboratoire de Physique Quantique, Univerité Paul Sabatier, F-31062 Toulouse, France Physics Department, Brooklyn College, CUNY, Brooklyn, New York 11210 Laboratoire de Chimie Théorique, CNRS and Université Pierre et Marie Curie, F-75252 Paris, Fr...

The effect of Gd doping and O deficiency on the electronic structure, exchange interaction, and Curie temperature of EuO in the cubic and tetragonal phases is studied by means of density functional theory. For both defects, the Curie temperature is found to exhibit a distinct maximum as a function of the defect concentration. The existence of optimal defect concentrations is explained by the in...