Author

Kastrup

Date of Award

8-1992

Degree Name

Master of Arts

Department

Physics

First Advisor

Dr. Sung G. Chung

Second Advisor

Dr. A. S. Rosenthal

Third Advisor

Dr. M. Soga

Access Setting

Masters Thesis-Open Access

Abstract

W ith the complex continuation method, introduced by Gupta and Sutherland (1976), the grand partition function for the sine-Gordon model of charge density waves may be calculated without violation of charge conservation. Contrary to previous works by Okwamoto, Takayama and Shiba (1979) and Turkevich and Doniach (1982) the chemical potential becomes temperature dependent. By direct comparison of numerical results with those of the above mentioned authors it is shown that the incommensurate-commensurate transition does not occur in the previously predicted temperature range.

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