Abstract
The Faraday rotation at wavelengths in the range 8-15 μ has been measured on several n- and p-type single crystals of Bi2 Te3 using a magnetic field of 17 koersteds. The results are interpreted as the sum of rotations arising from free carriers and interband transitions. The latter appear to be sensitive to the impurity content. An attempt has been made to separate the components and use the free carrier rotation to estimate the effective mass parameters. Free carrier absorption measurements in the range 8-20 μ are also reported. These lead to an independent estimate of the same effective mass parameters, showing fair agreement with the Faraday measurements. The results are discussed in the light of recent galvanomagnetic measurements on some of the crystals.
Sign-in/Register to access full text options 
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 call
