Angular Distribution of Positron Annihilation Radiation in Aluminum : Experiment
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概要
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Angular distributions of two photons resulted from annihilation of positrons in Al were measured along three principal crystallographic directions. The observed distribution curves were compared with the results of the APW calculation by Kubo et al. The fine structures and the anisotropies of the experimental curves verified theoretical predictions and were interpreted in terms of the shapes of the Fermi surfaces. A slight discrepancy that the theoretical curves were a little narrower than the experimental ones in the main part of the curves was found. This discrepancy is ascribed to the effect of the positron-electron interaction. By introducing enhancement factors much better agreement has been attained.
- 社団法人日本物理学会の論文
- 1976-09-15
著者
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Okada Takuya
The Institute Of Physical And Chemical Research
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SHIOTANI Nobuhiro
Institute of Materials Structure Science, High Energy Accelerator Research Organization
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SEKIZAWA Hisashi
The Institute of Physical and Chemical Research
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Shiotani Nobuhiro
Tokyo University of Fisheries
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SHIOTANI Nobuhiro
The Institute of Physical and Chemical Research
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Shiotani Nobuhiro
Institute Of Materials Structure Science High Energy Accelerator Research Organization
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Sekizawa Hisashi
The Institute Of Physic And Chemical Research
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Okada Takuya
The Institute For Physical And Chemical Research
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