Pressure effect on Electrical Resistivity of Bi-Sb Alloys

Shubha, V and Dutta, Soma and Ramesh, TG (2008) Pressure effect on Electrical Resistivity of Bi-Sb Alloys. J. High temps high press , 37 . p. 317. ISSN 0018-1544

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Abstract

The effect of quasi-hydrostatic pressure up to 2000 MPa on the temperature dependence of the electrical resistance is investigated in polycrystalline bismuth antimony (Bi-Sb) alloys containing 10, 12 and 15 at. % antimony. The results obtained indicate semimetallic phase under pressure for the alloys with antimony content of 10 and 15 at. %. The alloy with 12 at. % antimony changes its phase from semiconducting to semimetallic (SC→SM) under pressure. These pressure induced electronic transitions from SC→SM are due to basic changes in the energy spectrum occurring with the disappearance of electron and hole constant energy surfaces.

Item Type: Journal Article
Uncontrolled Keywords: Semiconductor;Semimetal;Electronic transport;Electronic band structure;High pressure
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
CHEMISTRY AND MATERIALS > Metals and Metallic Materials
ENGINEERING > Electronics and Electrical Engineering
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Ms. Alphones Mary
Date Deposited: 05 Aug 2011 10:52
Last Modified: 05 Aug 2011 10:52
URI: http://nal-ir.nal.res.in/id/eprint/9772

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