A density-functional theory of ferromagnetism in heterostructures of compound semiconductors doped with magnetic impurities is presented. The variable functions in the density-functional theory are the charge and spin densities of the itinerant carriers and the charge and localized spins of the impurities. The theory is applied to study the Curie temperature of planar heterostructures of III-V ...

The aim of the collaboration between Sanofi and Curie-Cancer is to revisit the basic biology of this type of cancer through a translational research approach. The Institut Curie has a large collection of cryopreserved tumor samples that are well characterized clinically, histologically and biologically. These can be analyzed to identify biological targets relevant to the effective treatment of ...

Abstract: Ferromagnetic alloy materials with designed composition depth profiles provide an efficient route for the control of magnetism at the nanometer length scale. In this regard, cobalt-chromium and cobalt-ruthenium alloys constitute powerful model systems. They exhibit easy-to-tune magnetic properties such as saturation magnetization MS and Curie temperature TC while preserving their crys...

Surface wave tomography shows that the central Tibetan Plateau (the Qiangtang block) is characterized by S wave speeds as slow as 3.3 km/s at depths from 20–25 km to 45–50 km and S wave radial anisotropy of at least 4% (VSH> VSV) that is stronger in the west than the east. The depth of the Curie temperature for magnetite inferred from satellite magnetic measurements, the depth of the α-β quartz...

The effect of short-time and long-time annealing at 250 • C on the conductivity, hole density, and Curie temperature of GaMnAs single layers and GaMnAs/InGaMnAs heterostructures is studied by in-situ conductivity measurements as well as Raman and SQUID measurements before and after annealing. Whereas the conductivity monotonously increases with increasing annealing time, the hole density and th...

The method of spectral analysis was applied to the total aeromagnetic intensity data covering district Ibapara, located on Nigeria Basement Complex in Oyo State, SW Nigeria. Prior analysis, inclined magnetisation converted vertical, reduced pole and filtered out order more correctly reflect spatial location morphology magnetic sources over geological bodies, enhance effects shallower deeper one...