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Giovanni Boero

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Related publications (86)

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3D printed microchannels for sub-nL NMR spectroscopy

Martinus Adela Maria Gijs, Jürgen Brugger, Giovanni Boero, Johann Michler, Marco Grisi, Maria Cristina Letizia, Laszlo Pethö, Enrica Montinaro

Nuclear magnetic resonance (NMR) experiments on subnanoliter (sub-nL) volumes are hindered by the limited sensitivity of the detector and the difficulties in positioning and holding such small samples in proximity of the detector. In this work, we report o ...

2018

A single-chip array of NMR receivers

Giovanni Boero, Jens Anders

We present the first single-chip array of integrated NMR receivers for parallel spectroscopy and imaging. The array, optimized for operation at 300 MHz, is composed of eight separate channels, with each channel consisting of a detection coil, a tuning capa ...

Academic Press Inc - Elsevier Science2009

A single chip electron spin resonance detector based on a single high electron mobility transistor

Giovanni Boero, Nergiz Sahin Solmaz, Alessandro Valentino Matheoud

Single-chip microwave oscillators are promising devices for inductive electron spin resonance spectroscopy (ESR) experiments on nanoliter and subnanoliter samples. Two major problems of the previously reported designs were the large minimum microwave magne ...

Academic Press Inc - Elsevier Science2018

Single-chip electron spin resonance detectors operating at 50 GHz, 92 GHz, and 146 GHz

Jürgen Brugger, Henrik Moodysson Rønnow, Giovanni Boero, Ivica Zivkovic, Jens Anders, Alessandro Valentino Matheoud, Gabriele Gualco

We report on the design and characterization of single-chip electron spin resonance (ESR) detectors operating at 50 GHz, 92 GHz, and 146 GHz. The core of the single-chip ESR detectors is an integrated LC-oscillator, formed by a single turn aluminum planar ...

Academic Press Inc - Elsevier Science2017

Single Superparamagnetic Bead Detection and Direct Tracing of Bead Position Using Novel Nanocomposite Nano-Hall Sensors

Giovanni Boero, Ivo Utke, Laurent Bernau

We show that nanocomposite materials consisting of superparamagnetic nanoparticles embedded in a matrix are very good candidates for a novel generation of Hall nanosensors with high spatial and magnetic resolution, capable of detecting superparamagnetic be ...

Institute of Electrical and Electronics Engineers2013

High sensitivity field asymmetric ion mobility spectrometer

Jürgen Brugger, Giovanni Boero, Philippe Marmillod, Mario Andres Chavarria Varon, Alessandro Valentino Matheoud

A high sensitivity field asymmetric ion mobility spectrometer (FAIMS) was designed, fabricated, and tested. The main components of the system are a 10.6 eV UV photoionization source, an ion filter driven by a high voltage/high frequency n-MOS inverter circ ...

American Institute of Physics2017

Probing strongly hybridized nuclear-electronic states in a model quantum ferromagnet

Henrik Moodysson Rønnow, Giovanni Boero, Peter Babkevich, Julian Piatek, Ivan Kovacevic

We present direct local-probe evidence for strongly hybridized nuclear-electronic spin states of an Ising ferromagnet LiHoF4 in a transverse magnetic field. The nuclear-electronic states are addressed via a magnetic resonance in the GHz frequency range usi ...

2016

Microscopic four-point probe based on SU-8 cantilevers

Jürgen Brugger, Giovanni Boero, Schahrazede-Lila Mouaziz

A microscopic four-point probe (u4PP) for resistivity measurements on thin films was designed and fabricated using the negative photoresist SU-8 as base material. The device consists of four microscopic cantilevers, each of them supporting a probe tip at t ...

2005

Transient Electronics: Biodegradable Frequency‐Selective Magnesium Radio‐Frequency Microresonators for Transient Biomedical Implants (Adv. Funct. Mater. 39/2019)

Jürgen Brugger, Giovanni Boero, Matthieu Jean Michel Rüegg

In article number 1903051, Matthieu Rüegg, Juergen Brugger, and co-workers design, fabricate, and characterize biodegradable magnesium microresonators using an innovative microfabrication process based on ion beam etching. Under a radio-frequency magnetic ...

2019

Element-specific X-Ray detection of electron paramagnetic resonance in thin films of quantum bits

Harald Brune, Giovanni Boero, Stefano Rusponi

Element-specific magnetism accessible by synchrotron-based X-ray spectroscopy has proven to be valuable to study spin and orbital moments of transition metals and lanthanides in technologically relevant thin-film and monolayer samples. The access to cohere ...

Nature Research2024

Hall sensor and method of operating a Hall sensor

Giovanni Boero, Radivoje Popovic, Pavel Kejik, Predrag Drljaca

A Hall sensor comprises a Hall element (1; 30; 31; 60) and an amplifier (2; 32; 33). The Hall element is placed inside the amplifier so that the current flowing through the Hall element also flows through the transistors of an amplifier stage of the amplif ...

2006

Thermomechanical Nanocutting of 2D Materials

Jürgen Brugger, Giovanni Boero, Xia Liu, Ana Conde Rubio, Samuel Tobias Howell

Atomically thin materials, such as graphene and transition metal dichalcogenides, are promising candidates for future applications in micro/nanodevices and systems. For most applications, functional nanostructures have to be patterned by lithography. Devel ...

Wiley2020

Nanobridge Stencil Enabling High Resolution Arbitrarily Shaped Metallic Thin Films on Various Substrates

Jürgen Brugger, Giovanni Boero, Yi-Chiang Sun

Stencil lithography (SL), which uses a perforated membrane as a reusable shadow mask to locally add material patterns on substrates provides a simple but versatile approach for the fabrication of functional devices on a large variety of substrate materials ...

Wiley2022

Two-dimensional magnetic resonance force microscopy using full-volume Fourier and Hadamard encoding

Jürgen Brugger, Giovanni Boero, Schahrazede-Lila Mouaziz

A rapid acquisition method for two-dimensional (2D) magnetic resonance force microscopy images is described. Spatial resolution is based on gradients in the static magnetic field B0 and in the applied radiofrequency field B1. Hadamard- and Fourier-encoding ...

2008

Electron counting at room temperature in an avalanche bipolar transistor

Giovanni Boero, Radivoje Popovic, Marc Lany

We report on real-time detection of single electrons inside a n-p-n bipolar junction transistor at room temperature. Single electrons injected through the base-emitter junction trigger with a high probability the avalanche breakdown of the strongly reverse ...

2008

Polymer-based cantilevers with integrated electrodes

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

An innovative release method of polymer cantilevers with embedded integrated metal electrodes is presented. The fabrication is based on the lithographic patterning of the electrode layout on a wafer surface, covered by two layers of SU-8 polymer: a 10-um-t ...

Institute of Electrical and Electronics Engineers2006

Room temperature strong coupling between a microwave oscillator and an ensemble of electron spins

Jürgen Brugger, Giovanni Boero, David Michael Suter, Jens Anders, Gabriele Gualco

We demonstrate theoretically and experimentally the possibility to achieve the strong coupling regime at room temperature with a microwave electronic oscillator coupled with an ensemble of electron spins. The coupled system shows bistable behaviour, with a ...

Academic Press Inc - Elsevier Science2013

Frequency jumps in single chip microwave LC oscillators

Giovanni Boero, Marco Grisi, Gabriele Gualco

We report on the experimental observation of oscillation frequency jumps in microwave LC oscillators fabricated using standard complementary metal-oxide-semiconductor technologies. The LC oscillators, operating at a frequency of about 20 GHz, consist of a ...

American Institute of Physics2014

Submicrometer Hall devices fabricated by focused electron-beam-induced deposition

Jürgen Brugger, Niels Quack, Giovanni Boero, Patrik Willi Hoffmann, Radivoje Popovic, Pavel Kejik, Schahrazede-Lila Mouaziz, Tristan Bret

Hall devices having an active area of about (500 nm)(2) are fabricated by focused electron-beam-induced deposition. The deposited material consists of cobalt nanoparticles in a carbonaceous matrix. The realized devices have, at room temperature, a current ...

American Institute of Physics2005

An Integrated CMOS Receiver Chip for NMR-Applications

Giovanni Boero, Jens Anders

We present the first CMOS-only receiver chip for NMR-applications at 300 MHz. The system consists of an on-chip reception coil, a tuning-capacitor, a downconversion-mixer and a low-frequency gain-stage as well as biasing and offset-compensation circuitry. ...

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