Acoustic phonons scattering mobility and carrier effective mass in In6S7 crystals

Date

2006-12-21

Author

Qasrawi, A. F.
Hasanlı, Nızamı

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Systematic dark electrical resistivity and Hall coefficient measurements have been carried out in the temperature range of 170-320 K on n-type In6S7 crystals. The analysis of the electrical resistivity and carrier concentration reveals the intrinsic type of conduction with an average energy band gap of similar to 0.75 eV The carrier effective masses of the conduction and valence bands were calculated from the intrinsic temperature-dependent carrier concentration data and were found to be 0.565m(0) and 2.020m(0), respectively. The temperature-dependent Hall mobility was observed to follow the mu alpha T-3/2 law and was analyzed assuming the domination of acoustic phonons scattering. The acoustic phonons scattering mobility was calculated from the crystal's structural data with no assumptions. The experimental Hall mobility data of In6S7 crystals coincides with the theoretical acoustic phonons scattering mobility data with acoustic deformation potential of 6.4 eV.

Subject Keywords

Mechanical Engineering, Materials Chemistry, Mechanics of Materials, Metals and Alloys

URI

https://hdl.handle.net/11511/40636

Journal

JOURNAL OF ALLOYS AND COMPOUNDS

DOI

https://doi.org/10.1016/j.jallcom.2006.02.037

Collections

Department of Physics, Article

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Citation Formats

A. F. Qasrawi and N. Hasanlı, “Acoustic phonons scattering mobility and carrier effective mass in In6S7 crystals,” JOURNAL OF ALLOYS AND COMPOUNDS, pp. 64–66, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40636.