Advanced Undergraduate Laboratory

Department of Physics

University of Toronto

SQM: Superconducting Quantum Interference Device (SQUID)

Superconducting Quantum Interference Devices are are spectacularly sensitive magnetometers based on Josephson junctions. Applications of SQUIDS vary from "mindreading" to testing General Relativity. In this experiment, basic properties of SQUIDS will be studied and some advanced experiments done. Brian Josephson received the Nobel Prize in 1973 for his prediction of the Josephson effect.


Write-Up in PDF Format.

(The experiment is currently located in MP239; last write-up revision: 2004.)

Additional resource: An informative 1997 article on SQUIDs from the Encyclopedia of Applied Physics.

The Mr. SQUID setup, with shielded dewar on floor at right.

Last updated on 5 March 2012