Low-temperature high-resolution magnetic force microscopy using a quartz tuning fork

Yongho Seo, Paul Cadden-Zimansky, Venkat Chandrasekhar

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We have developed a low-temperature high resolution magnetic force microscope (MFM) using a quartz tuning fork that can operate in a magnetic field. A tuning fork with a spring constant of 1300 Nm mounted with a commercial MFM cantilever tip was used. We have obtained high-resolution images of the stray magnetic fields exerted from grains with a spatial resolution of 15 nm and force resolution of 2 pN at 4.2 K. Tuning fork-based magnetic force microscopes have the potential to be used at millikelvin temperatures due to their low power dissipation and high force sensitivity.

Original languageEnglish (US)
Article number103103
JournalApplied Physics Letters
Volume87
Issue number10
DOIs
StatePublished - Sep 5 2005

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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