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Electrical resistance and thermoelectric power of the metastable phases in tellurium-base alloys

Citation

Tsuei, Chang-chyi (1966) Electrical resistance and thermoelectric power of the metastable phases in tellurium-base alloys. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:07222014-110401626

Abstract

By using techniques of rapid quenching from the melt, metastable phases have been obtained in ternary alloys which contain tellurium as a major component and two of the three noble metals (Cu, Ag, Au) as minor components. The metastable phases found in this investigation are either simple cubic or amorphous. The formation of the simple cubic phase is discussed. The electrical resistance and the thermoelectric power of the simple cubic alloy (Au30Te70) have been measured and interpreted in terms of atomic bondings. The semiconducting properties of a metastable amorphous alloy (Au5Cu25Te70) have been measured. The experimental results are discussed in connection with a theoretical consideration of the validity of band theory in an amorphous solid. The existence of extrinsic conduction in an amorphous semiconductor is suggested by the result of electrical resistance and thermoelectric power measurements.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:Materials Science
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Materials Science
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Duwez, Pol E.
Thesis Committee:
  • Unknown, Unknown
Defense Date:26 May 1966
Record Number:CaltechTHESIS:07222014-110401626
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:07222014-110401626
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8583
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:22 Jul 2014 18:19
Last Modified:28 Aug 2015 17:48

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