Particle Size and Superconducting Transition Temperature of Aluminum Fine Particles
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概要
- 論文の詳細を見る
Aluminum fine particles of free surfaces were made by the evaporation method in helium gas to investigate the relation between the superconducting transition temperature T_c of the fine particle and its size. The fine particles were collected without exposure to the air to obtain clean surfaces, however, this process introduced some undesirable weak contacts among the particles. The size distribution was determined by means of electron micrographs, and the average diameter d^^- ranged from 90 to 160 Å. The superconducting transition temperature T_c was determined from the change of diamagnetic susceptibility with temperature. The present experiment shows that T_c rises with a decrease in d^^-, and becomes about 1.8 K for d^^- of 90 Å, considerably higher than that of bulk aluminum 1.16 K.
- 社団法人応用物理学会の論文
- 1974-02-05
著者
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NOGUCHI Seiichiro
Department of Applied Physics,Faculty of Engineering,Nagoya University
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Matsuo Susumu
Department Of Applied Physics Nagoya University
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Miyata Hiroyuki
Department Of Applied Physics Faculty Of Engineering Nagoya University:(present Address) Musashino E
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Miyata Hiroyuki
Department Of Applied Physics Nagoya University
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Noguchi Seiichiro
Department Of Applied Physics Faculty Of Engineering Nagoya University
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