Measurement

The McDermott group has constructed two low-temperature measurement platforms:

• An adiabatic demagnetization refrigerator, with base temperature of 60 mK. The system is used for dc and microwave transport measurements and investigations of excess 1/f noise in Josephson devices.
  
  
• A large-wire count dilution refrigerator, with base temperature of 25 mK. The system is dedicated to Josephson qubit measurements.
  
  

Device Fabrication

Our laboratory has two sputter deposition systems for the growth of high-quality superconducting thin films and tunnel junctions. The Wisconsin Center for Applied Microelectronics (WCAM) offers state-of-the-art facilities for thin film deposition and reactive ion etching, along with advanced UV projection lithography and electron beam lithography.