YBa_2Cu_3O_x Films Irradiated by 120 MeV Oxygen Ions
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概要
- 論文の詳細を見る
YBa_2Cu_3O_x films were irradiated by 120 MeV O^<7+> ions. No significant change of T_c was found at the highest fluence of 1.3×10^<14>O^+/cm^2, but △M obtained from hysteresis loops and the irreversibility field appreciably decreased with irradiation. The decrease of zero-field cooling (ZFC) magnetization with irradiation is attributed to the increase of λ, which is caused by the decrease of density of superconducting carriers. Activation energies of flux motion were obtained from the measurements of magnetic relaxation. The decrease of activation energies may be correlated with the reduction of △M after the irradiation.
- 社団法人応用物理学会の論文
- 1994-02-15
著者
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Okayasu S
Jaeri Ibaraki Jpn
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Okayasu Satoru
Japan Atomic Energy Agency
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Kazumata Yukio
Japan Atomic Energy Research Institue
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ARUGA Tetsuya
Department of Chemistry, Graduate School of Science, Kyoto University
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Aruga T
Kyoto Univ. Kyoto Jpn
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ARUGA Takeo
Japan Atomic Energy Research Institute
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