32 datasets found

Le but de ma thèse est triple. Tout d'abord, ce travail est destiné au géologue et au géophysicien. Il s'ag,t d'amener le premier à prendre connaissance du...

We studied the magnetization reversal in FePt/MgO thin layers and FePt/Pt/FePt/MgO spin-valves with perpendicular magnetization deposited by molecular beam epitaxy at...

A low temperature microSQUID magnetometer coupled to a microwave antenna was used to probe the assisted switching of the magnetization of a ferromagnetic nanoparticle....

Within the last two decades, domain wall manipulation became one of the undetachable partsof spintronics. The interaction between spin-polarized conduction electrons...

This study is focused on understanding the transport properties of granular systems core - shell with emphasis on cobalt - cobalt oxide materials. We studied the...

Magnetic refrigeration is a promising alternative technology for cooling and gas liquefaction. This technology takes advantage on the magnetocaloric effect. This...

The intermetallic based on rare earth and transition metal compounds present interesting magnetic properties for the technological applications (permanent magnets,...

Mémoires de Géosciences-Rennes n°140. ISBN 2-914375-81-6

This Phd report shows several aspects of multiferroic and magnetoelectric properties and especially the effect of magnetic properties on dielectric and magnetoelectric...

Persistent currents in a ring threated by a magnetic flux is one of the most basic properties of mesoscopic physics. In the presence of a magnetic flux, a mesoscopic...

Tactile display devices are systems bound to provide a tactile feedback to their users. They improve human-machine interfaces in the fields of virtual or augmented...

Despite a first study dating from 1986 (Richardson, 1986), magnetic mineralogy in peat was not considered and used as a potential palaeoenvironmental proxy until very...

The recent discovery of superconductivity at a rather high temperature in the iron pnictides (Tc,max=56K) has revived some fundamental questions about the existence...

The study and comprehension of actinide's fundamental chemistry have important implications both for the development of new nuclear fuel and for the nuclear fuel...

Spintronics is a technique that uses the spin of electrons in electronic devices. The principle is based on physical properties such as magnetoresistance, (Nobel Prize...

Le granite de Gangotri-Badrinath, localisé au Garhwal (Indes) appartient à la ceinture des granites du Haut Himalaya. C'est un granite à tourmaline-muscovite fait de...

The purpose of this work was to develop a ballistic electron emission microscopy (BEEM) set-up that could be used to study magnetic objects at the nanometer scale...

This work deals with the formation and characterization of new organic-inorganic systems using the Langmuir films and the Langmuir-Blodgett technique. Different ways...

Large-scale accretionary and collisional crustal orogenic architecture is studied combining structural geology, lithostratigraphy, geochronology and magmatic petrology...

Magnetoresistive devices are currently used as read heads in hard drives. The context of the miniaturization of magnetic sensors to accommodate the increase in storage...