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Cantilever Magnetometry of Individual Ni Nanotubes

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Magnonics: Spin Waves on the Nanoscale

Dirk Grundler

Magnetic nanostructures have long been in the focus of intense research in the magnetic storage industry. For data storage the nonvolatility of magnetic states is of utmost relevance. As information technology generates the need for higher and higher data- ...

2009

Growth and magnetism of 2D bimetallic nanostructures

Géraud Moulas

This thesis addresses the growth and magnetic characterization of 2D bimetallic nanostructures deposited by atomic beam epitaxy (ABE) on Pt(111). These structures possess both tunable high perpendicular magnetic anisotropy (PMA) and magnetic moment. These ...

EPFL2008

Permalloy thin films exchange-coupled to arrays of stencilled cobalt islands

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

Patterned magnetic thin films are of interest due to the potential for new technological applications and also because of their modified physical behaviour as the lateral dimensions are reduced. The functionality of patterned films can be intelligently des ...

2006

CMOS magnetic sensors with integrated ferromagnetic parts

Radivoje Popovic, Pavel Kejik, Predrag Drljaca

The paper deals with Hall and flux-gate magnetic field sensors consisting of integrated combination of CMOS ASICs and planar ferromagnetic components. Ferromagnetic parts are made of a soft amorphous alloy, integrated at the CMOS wafer in a post-processing ...

Elsevier2006

Integrated Micro Hall Sensor on SU-8 Cantilever

Chantal Imboden

For further miniaturization of magnetic data storage devices, instruments for exploring magnetic nanostructures are needed. Hall sensors provide a non invasive technique for quantitative magnetic field detection. In contrast to the highly sensitive semicon ...

2006

Droplet-Based DNA Purification in a Magnetic Lab-on-a-Chip

Martinus Gijs, Ulrike Lehmann, Virendra Kumar Parashar, Caroline Vandevyver

Merge, Mix, Split and Transport, these are the main manipulation steps used for on-chip droplet-based DNA purification (see figure). The system is able to extract genomic material from dilute cell samples by using the actuation of magnetic microparticles w ...

2006

Bismuth Micro and Nano Hall Sensors on Photo-plastic Cantilevers for Scanning Hall Probe Microscopy

Jürgen Brugger, Giovanni Boero, Radivoje Popovic, Schahrazede-Lila Mouaziz

Conventional Hall devices are widely employed to measure magnetic fields produced by millimetre sized (or larger) current-caring conductors or permanent magnets with a standard active area of about (100 um)^2. Micro-Hall sensors have recently emerged as a ...

2004

Hall and bend-resistance magnetometry on two-micromagnet systems

Dirk Grundler

The stray field of permalloy (Py) micromagnets has been measured by means of a micrometer-sized Hall magnetometer incorporating a ballistic two-dimensional electron system. In particular, ferromagnetic specimens have been investigated where two micromagnet ...

Institute of Electrical and Electronics Engineers2002

Non-volatile magnetic random access memory

Jean-Philippe Ansermet

A non-volatile random access memory (NVRAM) of the type with magnetoresistive memory elements (1) connected by sets of non-intersecting conductor sense lines (3, 4) which define the address of each memory element (1) and are connectable to a magnetic write ...

2001

Printed circuit board integrated fluxgate sensor

Martinus Gijs

We have developed a cheap and simple trilayer printed circuit board (PCB)-based technology, adapted for the fabrication of fluxgate magnetic sensors. The two outer layers of the PCB stack comprise the electrical windings of the fluxgate, while the inner la ...

2000