Halleffect

From Physlab.lums.edu.pk

Observing Hall Effect in Semiconductors (1.12)

Students Manual	This experiment introduces students to the Hall Effect which is a fundamental principle of magnetic field sensing. Students will measure Hall coefficient and carrier charge concentration in a given semiconductor crystal which will help them to understand important concepts in semiconductor physics. In this experiment students will also learn the relationship between current and magnetic field in an electromagnet as well as in a semiconductor material.
Sample Results	Hall effect plots
Further Readings and References	Experiments in Modern Physics Adrian C. Melissinos, Experiments in Modern Pysics, Academic Press, (2003), pp. 63-71. Principles of Electronic Materials and Device S. O. Kasap, Principles of Electronic Materials and Devices, McGraw-Hill, (2006), pp. 145-148. Hall effect sensing Hall Effect Sensing and Application, Honeywell: Sensing and control, http://sensing.honeywell.com.

1. Provided equipment for this experiment.	2. Connection of electromagnet with power supply.
3. Placement of the Hall probe inbetween the pole pieces of electromagnet.	4. Side view of printed circuit board (PCB) and Hall probe placed vertically inbetween the pole pieces of electromagnet.
5. Top view of printed circuit board (PCB) and Hall probe placed vertically inbetween the pole pieces of electromagnet.