This MD4 cryostat is fitted with an extension tail that houses the sample, allowing measurements to be carried out when the sample is between the poles of a magnet. A carbon glass resistance thermometer measures temperatures from room temperature to 1.3 K. This system has been invaluable for measuring the current-voltage characteristics of superconducting thin films in magnetic fields, both parallel and perpendicular to the film plane. A selection of current sources, voltage meters, and electrometers are available for measurements.

• 
  Ben Ruck

  scps@vuw.ac.nz

• Kelburn Campus