Publication

Realization and characterization of magnetic multilayer for MFM tips

2006
Student Projects

Abstract

High resolution magnetic force microscopy plays an important role in the development of magnetic data storage media. Particularly the envisioned increase of the storage density to 1TBit per sqinch within the next five years requires an ongoing development of magnetic force microscopy. At that time a lateral resolution of magnetic features of 10nm is routinely achieved with sophisticated high aspect ratio tips. However, the above described needs of the hard disc industry clearly require a further development of magnetic force microscope tips. Intending an improvement of MFM tips we have developed antiferromagnetic (afm) coupled layers by separating two ferromagnetic (fm) Co films by a Ru interlayer of 0.9nm. The principle idea is to coat the SPM tips by a thin and small stripe of this multilayer along the tip taper what would lead to a dipole-like magnetic charge distribution at the tip apex.

Official source

https://infoscience.epfl.ch/entities/publication/009800b8-0d7a-4b14-9431-83b05a767cbd

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2006
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/009800b8-0d7a-4b14-9431-83b05a767cbd

About this result

Related concepts (32)

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.

Atomic force microscopy

Atomic force microscopy (AFM) or scanning force microscopy (SFM) is a very-high-resolution type of scanning probe microscopy (SPM), with demonstrated resolution on the order of fractions of a nanometer, more than 1000 times better than the optical diffraction limit. Atomic force microscopy (AFM) is a type of scanning probe microscopy (SPM), with demonstrated resolution on the order of fractions of a nanometer, more than 1000 times better than the optical diffraction limit.

Magnetic storage

Magnetic storage or magnetic recording is the storage of data on a magnetized medium. Magnetic storage uses different patterns of magnetisation in a magnetizable material to store data and is a form of non-volatile memory. The information is accessed using one or more read/write heads. Magnetic storage media, primarily hard disks, are widely used to store computer data as well as audio and video signals. In the field of computing, the term magnetic storage is preferred and in the field of audio and video production, the term magnetic recording is more commonly used.

Related publications (32)

Realization and characterization of magnetic multilayer for MFM tips

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