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Development of an ultrahigh vacuum scanning tunnelling microscope cooled by superfluid Helium.

Author(s) : KONDO Y., FOLEY E. T., AMAKUSA T., et al.

Type of article: Article

Summary

The authors have developed an ultrahigh vacuum (UHV) scanning tunneling microscope (STM) cooled by superfluid helium. This microscope is integrated with a solenoid and split-pair superconducting magnet. The STM can be operated at 300>T>4 K in a rotatable magnetic field of up to 8 T perpendicular to, and 1.5 T parallel to the sample surface. Moreover, tips and samples may be changed without venting the UHV system. The performance of the STM was confirmed by obtaining atomic resolution images of Si reconstructed surfaces at low temperatures. The STM performance was unaffected by the application of high magnetic fields.

Details

  • Original title: Development of an ultrahigh vacuum scanning tunnelling microscope cooled by superfluid Helium.
  • Record ID : 2003-0588
  • Languages: English
  • Source: Rev. sci. Instrum. - vol. 72 - n. 7
  • Publication date: 2001/07
  • Document available for consultation in the library of the IIR headquarters only.

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