A low-temperature ultrahigh vacuum scanning force microscope with a split-coil magnet

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Autor/in:
Erscheinungsjahr:
2002
Medientyp:
Text
Schlagworte:
  • Magnetic force microscopy
  • Magnetism
  • MFM tip
  • Magnetic Anisotropy
  • Magnetization
  • Magnetic force microscopy
  • Magnetism
  • MFM tip
  • Magnetic Anisotropy
  • Magnetization
Beschreibung:
  • We present the design of a scanning force microscope, which is optimized for magnetic force microscopy experiments. It can be operated at temperatures down to 5.2 K, in ultrahigh vacuum, and in magnetic fields of up to 5 T. Cooling is provided by a liquid helium bath cryostat, and the magnetic field is generated by a superconducting split-coil magnet. The design allows easy access from the side through a shutter system for fast in situ tip and sample exchange, while the microscope stays at temperatures below 25 K. The microscope itself features an all-fiber interferometric detection system, a 7.5×7.5 μm2 scan area at 5.2 K, and an xy table. The topographic resolution is demonstrated by imaging monoatomic steps on a nickel oxide surface, while magnetic contrast is shown on cobalt platinum multilayers and on a manganite perovskite film.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/85c0ff9c-36bf-40f4-b49e-833f39bf97c6