Development of UHV-LT MFM operating in magnetic field

Hidetaka Sugaya, Taro Hitosugi, Toshihiro Shimada, Toshihiko Nagamura, Yuji Matsumoto, Tetsuya Hasegawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have developed an ultrahigh-vacuum low-temperature magnetic force microscope (UHV-LT MFM) which can operate in magnetic fields. The microscope is based on a non-contact atomic force microscope using a piezoelectric cantilever. Measurements of hard disc media confirmed spatial resolution of ∼50 nm even at low temperatures down to 10 K. The maximum scanning area is as wide as 2.5 μm × 2.5 μm at 10 K and 7.5 μm × 7.5 μm at room temperature. We have also equipped the microscope with an electromagnet in order to apply external magnetic fields up to 0.25 T in the horizontal direction. The MFM head is mounted on a piezo-driven rotation stage, so that the direction of magnetic field relative to the sample surface can be set arbitrarily.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages1667-1668
Number of pages2
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: 2006 Aug 102006 Oct 17

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/TerritoryUnited States
CityOrlando, FL
Period06/8/1006/10/17

Keywords

  • External field
  • Low temperature
  • MFM
  • Spatial resolution
  • UHV

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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