ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We have grown Bi and BiSb alloy thin films on (211)CdTe substrates by molecular beam epitaxy. Growth proceeds with the Bi or BiSb (00.1) axis oriented along the CdTe[111] direction, which is tilted by 19° with respect to the substrate normal. Measurements of the Seebeck coefficient reveal a strong dependence on angle within the plane, due to the anisotropic electronic structure. The coefficient measured along the [1¯11] axis, which includes a trigonal contribution from the Seebeck tensor, is considerably higher than the value along the [011¯] axis. The magneto-Seebeck coefficient was also studied, for magnetic fields of 0–0.7 T. We observe a strong dependence on both crystal-axis and magnetic field direction, the so-called "umkehr" effect. © 2000 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.373740
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