Measurements of Equilibrium Vacancy Concentration in Bismuth
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概要
- 論文の詳細を見る
Precision nteasuren?ents of ntacroscopic (djlatometrjc) therntal expansionlsL/L? and nxicroscopic (X-ray) thermal expansion Ad/d? have been carried outon bisntuth single cr>zstals (99.9999X) along both a and c directions in the term-perature range between 50' to 260'C. The equilibrium defect concentration wasobtained as a function of tentperature by assuming the primary defects to bemtaonovacancies. The concentration of vacancies is 6.17 X ] 0 =' at the ntelting point,and the forxmation energy and entropy of a nvonovacancy are 0.35 eV and 0.3A,respectively. The ratios of the expansion arising exclusively from the creation ofdefects to the trtue thernval expansion of the ideal lattice without any thermalgeneration of vacancies are 2.0 '/, and 0.53 '/, at the melting point for the a and cdirections, respectively.
- 社団法人日本物理学会の論文
- 1977-05-15
著者
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NOGUCHI Masaharu
National Laboratory for High Energy Physics
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NOGUCHI Masayasu
Japan Atomic Energy Research Institute
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Matsuno N
Department Of Physics Faculty Of Science Science University Of Tokyo
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Matsuno Naoshi
Department Of Physics Faculty Of Science Science University Of Tokyo
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