HIGH T//c SUPERCONDUCTIVITIES OF A//2Ba//4Cu//6O//1//4// plus //y.

Shigeyuki Tsurumi; Makoto Hikita; Tsunekazu Iwata; Kouichi Semba; Susumu Kurihara

HIGH T//c SUPERCONDUCTIVITIES OF A//2Ba//4Cu//6O//1//4// plus //y.

Shigeyuki Tsurumi^*, Makoto Hikita, Tsunekazu Iwata, Kouichi Semba, Susumu Kurihara

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Chapter

43 Citations (Scopus)

Abstract

Superconductivities of A2//2Ba4//4Cu//6O//1//4// plus //y (0 less than y less than 2. 5, A equals lanthanides except for Pm) compounds are studied through X-ray powder diffraction pattern analysis and electrical resistance measurement. Resultant compounds in case of A equals 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//1//4// plus //y, i. e. , oxygen defect perovskite (ODP) and superconducting state. Key structure for realizing high Tc more than 90 K and narrow transition width is confirmed to be related with the ODP phase.

Original language	English
Title of host publication	Japanese Journal of Applied Physics, Part 2: Letters
Pages	856-857
Number of pages	2
Volume	26
Edition	5
Publication status	Published - 1987 May
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)

Cite this

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abstract = "Superconductivities of A2//2Ba4//4Cu//6O//1//4// plus //y (0 less than y less than 2. 5, A equals lanthanides except for Pm) compounds are studied through X-ray powder diffraction pattern analysis and electrical resistance measurement. Resultant compounds in case of A equals 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//1//4// plus //y, i. e. , oxygen defect perovskite (ODP) and superconducting state. Key structure for realizing high Tc more than 90 K and narrow transition width is confirmed to be related with the ODP phase.",

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AU - Tsurumi, Shigeyuki

AU - Hikita, Makoto

AU - Iwata, Tsunekazu

AU - Semba, Kouichi

AU - Kurihara, Susumu

PY - 1987/5

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AB - Superconductivities of A2//2Ba4//4Cu//6O//1//4// plus //y (0 less than y less than 2. 5, A equals lanthanides except for Pm) compounds are studied through X-ray powder diffraction pattern analysis and electrical resistance measurement. Resultant compounds in case of A equals 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//1//4// plus //y, i. e. , oxygen defect perovskite (ODP) and superconducting state. Key structure for realizing high Tc more than 90 K and narrow transition width is confirmed to be related with the ODP phase.

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HIGH T//c SUPERCONDUCTIVITIES OF A//2Ba//4Cu//6O//1//4// plus //y.

Abstract

ASJC Scopus subject areas

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