Higher Physics Lab Soild State Physics



Exp-1 To measure the transition temperature of a high temperature superconductor.
Exp-2 To demonstrate the Meissner-Ochsenfeld effect.

  • High quality superconductor with in-built four probe & surface temperature sensor.
  • Differential voltage probes for temperature & voltage measurement.
  • Labpro may be used in other experiments also.
  • Graphical display of the data.
  • Superconductor.
  • Transition temperature.
  • Meissner effect
  • Critical temperature.

Superconductivity was discovered in 1911, when Kamerlingh Onnes found that the electric resistance of mercury dropped to zero at cryogenic temperatures. The so called transition temperature when a conductor becomes superconducting depends on the material used. For the next 75 years, the transition temperatures were just in the 10 to 20 K range.
In the present setup, the transition temperature of high temperature superconductor YBCO or BSCCO is measured. A probe chamber is used for liquid nitrogen in which the superconducting probe (sample) is cooled to below its critical temperature of approximately 93 K or -180 °C. The superconductivity probe is designed precisely based on four- point measurement for resistivity, the end points for fixed current and middle points for voltage drop. A temperature sensor is also attached on the surface of the sample. The voltage drop across the sample is measured as a function of the sample temperature using the voltage sensor.


Cat. No. Item Name Qty.
SU001 Superconductivity measurement unit 1
SU002 Superconductivity with Probe arrangment 1
SU004 Meissner Effect Sample 1
SU003 Probe Chamber 1
  Interface 1
  Software 1
  Voltage Probe 2

* Additionally Required :
Computer not supplied with the setup.

Solid State Physics Experiments