PROPERTIES OF SEMICONDUCTING MATERIALS NEAR THE MELTING POINT AND IN THE LIQUID STATE
Abstract
A preliminary investigation of the physical properties of semicon ucting materials at temperatures up to and above the melting point has been made. Bismuth telluride and selenide were considered to be particularly appropriate materials for examination. The linear expansion coefficient has been measured for the telluride in both the a and c directions, and for the selenide in the a direction. Published specific heat data have been examined and D.T.A. measurements made from room temperature to above the melting point in the telluride. All these measurements indicate some form of pre-melting phenomena occurring in this material over a temperature range of 50 C below the melting point. In addition, the expansion coefficient observations indicate an anomaly at lower temperatures (140 C for Bi2Te3 and approximately 0 C for Bi2Se3). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1961
- Accession Number
- AD0267361
Entities
People
- G.f. Alfrey
- K.n.r. Taylor
- R.v. Hodgson
Organizations
- University of Birmingham