A simple automated system for hall effect measurements

• Main Authors: Abas, Ariffin, Shaari, Abdul Halim, Talib, Zainal Abidin, Abdul Wahab, Zaidan
• Format: Article
• Language: English
• Published: Penerbit Universiti Kebangsaan Malaysia 2012
• Online Access: http://psasir.upm.edu.my/id/eprint/25089/1/A%20simple%20automated%20system%20for%20hall%20effect%20measurements.pdf; http://psasir.upm.edu.my/id/eprint/25089/; http://www.ukm.my/jsm/english_journals/vol41num5_2012/contentsVol41num5_2012.html
• Institution: Universiti Putra Malaysia

This project deals with the development of a computer interfacing technique for the study of Hall effect. A stepper motor with resolution of 0.1 mm was used to move a pair of permanent magnet backward and forward against the sample. The General Purpose Interface Bus (GPIB) card together with a digital nanovoltmeter and teslameter using serial port siri RS232, interface were used to measure the potential difference and magnetic field strength, respectively. Hall effect for YBa2Cu3-xTixO7-δ system (x=0.00, 0.01, 0.03 and 0.05) showed positive sign Hall coefficient showing that the material is a hole type carrier at room temperature. Parameters such as Hall coefficient and charge carrier concentration were also display on the front panel of Lab View programming.