DocumentCode :
3142165
Title :
A novel high resolution quantitative magnetic force microscope for hard disk research
Author :
Kappenberger, P. ; Hug, H.J. ; Martin, S. ; Guntherodt, H.-J. ; Buchel, D. ; Ahner, J. ; Weller, D.
Author_Institution :
Inst. fur Phys., Basel Univ., Switzerland
fYear :
2003
fDate :
6-8 Jan. 2003
Firstpage :
37
Abstract :
The Magnetic Force Microscope (MFM) has become a major tool for characterizing and evaluating read and write heads, written tracks and material performance in magnetic data storage. However, standard MFM techniques suffer from the following problems that limit their application to image the bit structure as the storage density advances towards 1 Tbit/in/sup 2/: the lack of lateral resolution and measurement sensitivity on a nanometer scale; the difficulty of relating the measured signal to the stray field; and the ability to separate the topography and magnetic signal. The techniques to obtain a high lateral resolution and achieve a complete separation of topography and magnetism, were developed with sophisticated MFMs built for fundamental research. These instruments are not suitable for industrial applications due to their complexity and restrictions regarding the sample size. In order to overcome these limitations a novel room temperature MFM (QMFM), with a focus on industrial standard applications, has been developed at the University of. Basel.
Keywords :
digital magnetic recording; hard discs; magnetic force microscopy; sensitivity; Si; Si tips; hard disk research; high lateral resolution; high resolution quantitative MFM; magnetic data storage; magnetic force microscope; material performance; measurement sensitivity; read heads; room temperature MFM; write heads; written tracks; Density measurement; Hard disks; Image storage; Magnetic field measurement; Magnetic force microscopy; Magnetic forces; Magnetic materials; Magnetic separation; Signal resolution; Surfaces;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Joint NAPMRC 2003. Digest of Technical Papers [Perpendicular Magnetic Recording Conference]
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-7746-X
Type :
conf
DOI :
10.1109/NAPMRC.2003.1177041
Filename :
1177041
Link To Document :
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