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

Yongho Seo; Paul Cadden-Zimansky; Venkat Chandrasekhar

doi:10.1063/1.2037852

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

Yongho Seo, Paul Cadden-Zimansky, Venkat Chandrasekhar

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

35 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 language	English (US)
Article number	103103
Journal	Applied Physics Letters
Volume	87
Issue number	10
DOIs	https://doi.org/10.1063/1.2037852
State	Published - Sep 5 2005

Funding

This work was supported by the NSF through Grant No. ECS-0139936. The authors thank A. K. Gupta and K. -W. Ng for helpful discussions about the low-temperature coarse approach mechanism.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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.",

author = "Yongho Seo and Paul Cadden-Zimansky and Venkat Chandrasekhar",

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AB - 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.

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

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