Photo-Hall apparatus with simple but precise magnetic field and temperature control
- 1 November 1974
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 7 (11) , 944-947
- https://doi.org/10.1088/0022-3735/7/11/024
Abstract
An experimental setup for DC measurements of photoconductivity and photo-Hall effect in semiconductor materials as a function of excitation intensity, photon energy and temperature over the range 85-330 K is described. The arrangement enables also the measurement of a thermally stimulated current (TSC), especially by means of the 'decayed TSC' method. The extremely simple design of magnetic field and temperature controllers allows magnetic field stability to 0.01% and control of temperature to within +or-0.05 K. Experimental results obtained in semi-insulating GaAs-Cr show the possibilities of the apparatus described.Keywords
This publication has 7 references indexed in Scilit:
- A method for the measurement of thermally stimulated currents on high resistivity materialsJournal of Physics E: Scientific Instruments, 1973
- A metal cryostat and sample holder for photo Hall-effect studies on high-ohmic crystals in the 10–300 K temperature rangeCryogenics, 1972
- A precision solid-state temperature controllerJournal of Physics E: Scientific Instruments, 1971
- An ac Resistance Bridge and Temperature ControllerReview of Scientific Instruments, 1970
- A fast and stable temperature controller for the range 4$middot$2-300 KJournal of Physics E: Scientific Instruments, 1970
- Improved Design Liquid Helium Temperature Regulator Using Operational Amplifier CircuitsReview of Scientific Instruments, 1970
- A simple temperature controllerJournal of Physics E: Scientific Instruments, 1969