Publication

An integrated micro-Hall probe for scanning magnetic microscopy

Giovanni Boero, Radivoje Popovic, Pavel Kejik
2006
Journal Articles

Abstract

Anewmicrosystem with the ability to detect magnetic microstructures based on the non-invasive Hall principle is presented. The micro-Hall plate embedded in the microsystem and scaled down to the physical limits of the employedCMOStechnology has an active area of only 2.4um×2.4um. The microsystem exhibits an output sensitivity of 7.5 V/T in perpendicular direction to the chip surface and a magnetic field resolution of 300 nT/√Hz at 1 Hz. A two-dimensional magnetic scanner was developed to demonstrate the performances of the developed microsystem.

Official source

https://infoscience.epfl.ch/entities/publication/01cd36e5-ef46-4ad6-8440-3baeddad2f77

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Giovanni Boero, Radivoje Popovic, Pavel Kejik
2006
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/01cd36e5-ef46-4ad6-8440-3baeddad2f77

About this result

Related concepts (24)

Scanning probe microscopy

Scanning probe microscopy (SPM) is a branch of microscopy that forms images of surfaces using a physical probe that scans the specimen. SPM was founded in 1981, with the invention of the scanning tunneling microscope, an instrument for imaging surfaces at the atomic level. The first successful scanning tunneling microscope experiment was done by Gerd Binnig and Heinrich Rohrer. The key to their success was using a feedback loop to regulate gap distance between the sample and the probe.

Scanning tunneling microscope

A scanning tunneling microscope (STM) is a type of microscope used for imaging surfaces at the atomic level. Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer, then at IBM Zürich, the Nobel Prize in Physics in 1986. STM senses the surface by using an extremely sharp conducting tip that can distinguish features smaller than 0.1 nm with a 0.01 nm (10 pm) depth resolution. This means that individual atoms can routinely be imaged and manipulated.

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