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Transport properties of Bi2S3 single crystals

✍ Scribed by H.T. Shaban; M.M. Nassary; M.S. El-Sadek

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
187 KB
Volume
403
Category
Article
ISSN
0921-4526

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✦ Synopsis

Bi 2 S 3 single crystals were grown by a modified of Bridgman method. Measurements of the electrical conductivity, Hall effect and thermoelectric power (TEP) were preformed in two crystallographic directions (parallel and perpendicular to the c-axis). The measurements showed that the electrical conductivity, Hall mobility, and Seebeck coefficient have anisotropic nature. From these measurements many physical parameters were estimated and the crystals showed n-type of conduction mechanism. Also, values of the energy gap were found to be different in the two directions r 2007 Published by Elsevier B.V.

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## Transport Coefficient of Gallium-doped Bi,Te, Single Crystals Gallium-doped Bi,Te, single crystals were prepared by means of a modified Bridgman method. Temperature dependences of the Hall constant R,(B 1) c), electrical conductivity olC and Seebeck coefficient S(dT I c) were measured on the s