Concept

Inversion du champ magnétique terrestre

Publications associées (75)

Magnetic states and spin-wave modes in single ferromagnetic nanotubes

In this thesis the electrical properties, magnetic states and spin wave resonances of individual magnetically hollow ferromagnetic nanotubes have been studied. They were prepared from the different materials Nickel (Ni), Permalloy (Py) and Cobalt-Iron-Boro ...

EPFL2014

Optimization of Heat Treatment of Japanese Nb3Sn Conductors for Toroidal Field Coils in ITER

Pierluigi Bruzzone, Kamil Sedlák, Boris Stepanov

The optimization of the heat treatment of Nb3Sn conductors for toroidal field coils in ITER was attempted to improve the current sharing temperatures (T-CS). Using the strand, we chose the pattern at 570 degrees C for 250 h and 650 degrees C for 100 h as t ...

Ieee-Inst Electrical Electronics Engineers Inc2014

Magnetization reversal mechanism of ramified and compact Co islands on Pt(111)

Harald Brune, Stefano Rusponi, Donat Fabian Natterer, Anne Lehnert, Alberto Cavallin, Géraud Moulas

We report on the magnetization reversal mechanism of Co islands on Pt(111) as a function of their size and shape. We measure the zero-field susceptibility chi(T) and low-temperature magnetization curves M(H) with in situ magneto-optical Kerr effect. Togeth ...

Amer Physical Soc2014

Canopy wake measurements using multiple scanning wind LiDARs

Fernando Porté Agel, Corey Dean Markfort, Giacomo Valerio Iungo, Fernando Carbajo Fuertes

Canopy wakes have been shown, in controlled wind tunnel experiments, to significantly affect the fluxes of momentum, heat and other scalars at the land and water surface over distances of O(1 km), see Markfort et al. (EFM, 2013). However, there are current ...

2014

Controllable polarity fet based arithmetic and differential logic

Giovanni De Micheli, Pierre-Emmanuel Julien Marc Gaillardon, Luca Gaetano Amarù

A logic gate with three inputs A, B, and C, and one output implementing a function MAJ(A,B,C)=AB+BC+A*C comprising two mutually exclusive transmission gates (TGs) connected in series, based on two parallel double-gate controllable polarity devices, a pol ...

2014

Growth and Magnetism of Nanostructures Investigated by STM, MOKE, and XMCD

Alberto Cavallin

This thesis presents our studies on nanostructures growth and magnetism, mainly based on scanning tunneling microscopy (STM), magneto-optical Kerr effect (MOKE), and x-ray magnetic circular dichroism (XMCD) measurements. In most of these experiments, nanos ...

EPFL2013

Space- and time-resolved Seebeck and Nernst voltages in laser-heated permalloy/gold microstructures

Jean-Philippe Ansermet, Dirk Grundler, Arndt Christian von Bieren

Thermoelectric effects in microstructured permalloy (Py) / gold (Au) wires are investigated using spatially and time-resolved measurements based on scanning focused laser heating. Supported by numerical simulations of the temperature distribution, we ident ...

American Institute of Physics2013

Magnetodynamical response of large-area close-packed arrays of circular dots fabricated by nanosphere lithography

Dirk Grundler

We report a combined experimental and theoretical study of the quasistatic hysteresis and dynamic excitations in large-area arrays of NiFe nanodisks forming a hexagonal lattice with the lattice constant of 390 nm. Arrays were fabricated by patterning a 20- ...

2013

Evolution of the Aerodynamic Stability of an Oscillating Annular Compressor Cascade with Inlet Reverse Flow Condition Variations

Peter Ott, Virginie Anne Chenaux

While the advancement of computing hardware now enables accurate predictions of flutter and forced response at normal flow conditions during the compressor design phase, aeroelastic computations at off-design or reverse flow conditions remain a challenging ...

Lappeenranta University of Technology2013

Characterization of Magnetic Immunity of an Ironless Inductive Position Sensor

Yves Perriard, Alessandro Danisi, Alessandro Masi

The ironless inductive position sensor is a novel linear position-sensing device that should exhibit immunity to external magnetic fields while simultaneously guaranteeing high-precision measurements in harsh environments. This paper focuses on the charact ...

Ieee-Inst Electrical Electronics Engineers Inc2013

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