Lab Facilities
The superconductivity lab has several cryogenic systems that allow study of the local magnetic properties of superconductors based on the Hall Sensor technique as well as various transport investigations. These systems are designed for operation in a wide range of temperatures down to 1.5K, variable magnetic fields up to 6 T, and application of AC fields in various directions.
![System for Hall sensor measurement](javascript:openPopWin("images/hallsystem.jpg");)
System for Hall Sensor measurements |
![Magneto-optical system](javascript:openPopWin("images/mooptics.jpg");)
Magneto-optical system |
![Probe station](javascript:openPopWin("images/probestation.jpg");)
Probe station |
![Corbino configuration on NbSe2](javascript:openPopWin("images/corb1.jpg");)
Corbino configuration on NbSe2 crystal |
The microscopic arrays of Hall sensors are developed and manufactured using the facilities of the Submicron Center. We have built a magneto-optical system and have developed a new differential MO method, which improves the sensitivity of the MO technique by two orders of magnitude.
In order to allow simultaneous investigation of magnetic and transport properties of superconductors, preparation of miniature electrical contacts and careful mounting onto the Hall sensor chips is required. Various evaporation methods are utilized and the sample mounting and testing is carried out using a dedicated probe station.