Highlights 2009

09-12-2009
In our magnetic levitation facility OLGA, in a low magnetic field, we have observed a beautiful ferrofluid behaviour of liquid oxygen, close to its critical point.   Ferrofluids are liquids loaded with magnetic colloids. Their free surfaces may be subject to shape instabilities whenever ... More »
18-10-2009
High-frequency pulse tube technology (30 ~ 50 Hz) meets space vibration and reliability requirements but, up until now, was restricted to temperatures greater than 35 K. An experimental program has been devised, aimed at reducing the temperature by means of an ingenious ... More »
06-06-2009
Contact : Roser Vallcorba
The main aim of the ITER fusion process is to generate 500 MW of heat power for a period of several minutes, from a 50 MW power input source. The indispensable condition: "proper" cooling of several tens of kilometres of superconducting windings that confine the plasma. In collaboration ... More »
 
20-09-2009
Spintronics created magnetic memories and radio-frequency oscillators based on similar stacks of magnetic and non-magnetic layers. In an oscillator, a continuous current of spin-polarized electrons flowing across the stack produces a steady magnetization precession of one layer, at the origin of ... More »
01-05-2009
Contact : Dimitri Houssamedine
With original measurements on high quality samples, Spintec laboratory, in collaboration with Leti and Hitachi, has just revealed one of the reasons why the performance of radio frequency spin oscillators still remains limited. Our studies show that the quality of the oscillators is inherently very ... More »
15-03-2009
Contact: Gilles Gaudin
In Hard disk drives and magnetic memories, information is stored in a magnetic domain, associating magnetization direction to logic 1 and 0, up or down direction, which is written using a magnetic field. To locally manipulate the border of these domains, the domain wall, with an electrical current ... More »
 

 

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