Abstract
The magnetic susceptibility, resistivity and Hall constant of samples of tellurium of various charge carrier densities have been measured between 4·2°K and 500°K. Pure tellurium shows a temperature independent susceptibility between room temperature and the temperature of liquid helium. All heavily doped samples show a temperature dependent diamagnetism which is thought to arise from the free charge carriers. The magnetic susceptibility and galvanomagnetic effects are interpreted with a simple two band model. Hole effective masses, based on the two band interpretation of the susceptibility measurements, are found to range from 0·14 m to 0·24 m. An impurity scattering effective mass of 0·2 m is found for the holes in the most degenerate sample. Magnetic evidence for the trapping of charge carriers can be seen in the liquid helium region and an estimate of 0·004 eV is obtained for the activation energy of hole formation. All samples show an unexplainable temperature dependent paramagnetic contribution to the susceptibility above room temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
