High T_c Superconductivities of A_2Ba_4Cu_6O_<14+y>
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概要
- 論文の詳細を見る
Superconductivities of A2_2Ba4_4Cu_6O_<14+y>(0<y<2.5, A=lanthanides except for Pm) compounds are studied through X-ray powder diffraction pattern analysis and electrical resistance measurement. Resultant compounds in case of A=La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm and Yb except for Ce, Pr, Tb and Lu exhibit both characteristic diffraction patterns for A_2Ba_4Cu_6O_<14+y>,i.e., oxygen defect perovskite (GDP) and superconducting state. Key structure for realizing high Tc more than 90 K and narrow transition width is confirmed to be related with the GDP phase.
- 社団法人応用物理学会の論文
- 1987-05-20
著者
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Hikita M
Ntt Advanced Technol. Corp. Ibaraki Jpn
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Hikita Makoto
Ntt Opto-electronics Laboratory
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Hikita Makoto
Ntt Advanced Technology Corp.
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Hikita Makoto
Ntt Photonics Laboratories
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Hikita Makoto
Ntt Electrical Communications Laboratories
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Semba Kouichi
Ntt Electrical Communications Laboratories:(present Address) Ntt Basic Research Laboratories
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TSURUMI Shigeyuki
NTT Opto-Electronics Laboratory
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IWATA Tsunekazu
NTT Opto-Electronics Laboratory
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TSURUMI Shigeyuki
NTT Electrical Communications Laboratories
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IWATA Tsunekazu
NTT Electrical Communications Laboratories
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KURIHARA Susumu
NTT Electrical Communications Laboratories
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Kurihara S
Ntt Basic Res. Lab. Kanagawa Jpn
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Iwata T
Hokkaido Tokai Univ. Sapporo Jpn
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KURIHARA SUSUMU
NTT Electrical Communication Laboratories
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