Concept

Magnetometer

Related publications (432)

Persistent Spin Dynamics Intrinsic to Amplitude-Modulated Long-Range Magnetic Order

An incommensurate elliptical helical magnetic structure in the frustrated coupled-spin-chain system FeTe2O5Br is surprisingly found to persist down to 53(3) mK (T/T-N similar to 1/200), according to neutron scattering and muon spin relaxation. In this stat ...

Amer Physical Soc2012

Manipulation of giant Faraday rotation in graphene metasurfaces

Julien Perruisseau-Carrier

Faraday rotation is a fundamental magneto-optical phenomenon used in various optical control and magnetic field sensing techniques. Recently, it was shown that a giant Faraday rotation can be achieved in the low-THz regime by a single monoatomic graphene l ...

American Institute of Physics2012

Possible skyrmion-lattice ground state in the B20 chiral-lattice magnet MnGe as seen via small-angle neutron scattering

Jonathan White

We have investigated the magnetic structure in a polycrystalline sample of the B20-type MnGe by means of small-angle neutron scattering. On the projected diffraction plane normal to the incoming neutron beam, a Debye-ring-like pattern appears due to the ra ...

Amer Physical Soc2012

Lévy walk description of suprathermal ion transport

Paolo Ricci, Kyle Gustafson

Transport of suprathermal ions is examined from the Levy walk perspective in a simple magnetized toroidal plasma. Depending on their energy, these suprathermal ions exhibit superdiffusive, diffusive, or subdiffusive dispersion as a result of the complex in ...

American Institute of Physics2012

A Fully Integrated Hall Sensor Microsystem for Contactless Current Measurement

Maher Kayal, Marc Pastre, Andrea Ajbl

Contactless current measurement based on Hall-effect sensors can be performed in either closed-or open-loop configuration. In this paper an open-loop sensor system with a current-mode output is described. The system measures the magnetic field induced arou ...

Ieee2012

Suprathermal ion transport theory and experiments in the SMT

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Kyle Gustafson, Alexandre Dominique Bovet

Recent advances in the suprathermal ion diagnostic in the basic plasma experiment TORPEX have inspired our comprehensive theoretical study of suprathermal ion transport. TORPEX, an example of a simple magnetized toroidal plasma (SMT), is equipped with a fl ...

2012

Nondiffusive Suprathermal Ion Transport in Simple Magnetized Toroidal Plasmas

Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Kyle Gustafson

We investigate suprathermal ion dynamics in simple magnetized toroidal plasmas in the presence of electrostatic turbulence driven by the ideal interchange instability. Turbulent fields from fluid simulations are used in the nonrelativistic equation of ion ...

2012

Observations on turbulence and beam-ion driven modes in TEXTOR

Stefano Coda, Mattia Albergante, Cornelis Adrianus de Meijere

At a sufficiently weak toroidal magnetic field, neutral beam injection heated, limited plasmas in the TEXTOR tokamak exhibit bursts of beam-ion driven 'fishbone' and Alfven modes, which are characterized for the first time using the multi-antenna reflectom ...

Iop Publishing Ltd2012

Temperature Influence Investigation on Hall Effect Sensors Performance Using a Lumped Circuit Model

Maher Kayal, Jean-Michel Sallese, Maria-Alexandra Paun

In order to provide the information on their Hall voltage, sensitivity and drift with temperature, a new simpler lumped circuit model for the evaluation of various Hall Effect sensors has been developed. In this sense, the finite element model associated c ...

IEEE2012

High Bandwidth CMOS Magnetic Sensors Based on the Miniaturized Circular Vertical Hall Device

Mirjana Banjevic

Hall-effect devices make up by far the largest part of all magnetic sensors on the market today. The main reason is compatibility of Hall devices with modern semiconductor technology. In particular, integrated Hall sensor micro-systems fabricated in low-co ...

EPFL2011

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