Oxygen Deficiency in YM_2Cu_3O_<7+y> (M=Ba, Sr) Family
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概要
- 論文の詳細を見る
YBa_2Cu_3O_<7+y> samples, slowly cooled after annealing, are orthorhombic and exhibit a complete transition at 90 K. On the contrary, rapidly quenched samples are tetragonal and their T_c's are 20 K lower than those of the slowly cooled ones. It is found from thermogravimetric analysis that the amount of oxygen deficiency in the tetragonal samples is greater than the orthorhombic ones. This fact indicates that the structural difference is attributed to both the disordering of oxygen vacancies and the difference in oxygen vacancy amount. In addition, YSr_2Cu_3O_<7+y> samples are tetragonal and exhibit complete transition at 81 K.
- 社団法人応用物理学会の論文
- 1987-05-20
著者
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Suzuki M
Tohoku Univ. Sendai Jpn
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MURAKAMI Teruyoshi
Department of Applied Physics, School of Engineering, The University of Tokyo
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Suzuki Minoru
Ntt Electrical Communication Laboratories
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ODA Migaku
NTT Electrical Communication Laboratories
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MURAKAMI Toshiaki
NTT Electrical Communication Laboratories
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Murakami T
Department Of Applied Physics School Of Engineering The University Of Tokyo
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ENOMOTO Yoichi
NTT Electrical Communications Laboratories
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