A mathematical algorithm and custom nanoprobes to improve the resolution of Magnetic Force Microscopy (MFM) images

Pablo Gomez, Robert Fernandez, Nissim Amos, Sakhrat Khizroev, Claudia M. Lopez

Research output: Contribution to journalArticlepeer-review

Abstract

We are working on developing special nanoprobes and techniques to improve the resolution of Magnetic Force Microscopy, MFM. In this paper we describe the custom probes fabricated at our lab and a mathematical algorithm to improve the resolution of the images obtained with these probes. The algorithm is based on physical principles and not on statistical nor on digital signal processing techniques. Our method consists in reversing the non-uniform interaction that takes place between the magnetized probe tip and the perpendicular magnetic stray field produced by the magnetized sample. We developed a compensation field that when scanned over the originally data points produces the effect of imaging the magnetic field with a flat response probe tip. Using this method we obtained images of higher resolution than those provided by conventional MFM.

Original languageEnglish (US)
Pages (from-to)20-25
Number of pages6
JournalJournal of Nanoelectronics and Optoelectronics
Volume5
Issue number1
DOIs
StatePublished - Apr 2010
Externally publishedYes

Keywords

  • MFM
  • Nanomagnetics
  • Probe
  • Resolution

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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