Superconducting transitions of YBa2Cu3Ox superconductors in high fields

T. Matano; M. R. Koblischka; B. W. Veal; M. Murakami; T. Takizawa

doi:10.1088/0953-2048/13/6/336

Superconducting transitions of YBa₂Cu₃O_x superconductors in high fields

T. Matano, M. R. Koblischka, B. W. Veal, M. Murakami, T. Takizawa

研究成果: Conference article › 査読

5 被引用数 (Scopus)

抄録

Superconducting transitions were measured in field-cooled cooling and field-cooled warming modes in external magnetic fields ranging between 1 mT and 7 T on YBa₂Cu₃O_x (Y123) single crystals with and without the fishtail effect. The Y123 crystal with the fishtail effect exhibited a two-step transition when being cooled in high fields, while the Y123 crystal without the fishtail showed a single step transition. Furthermore, an upturn in magnetic moment was observed at lower temperatures for Y123 with the fishtail effect. Such an upturn is ascribed to the local Cu magnetic moment due to oxygen vacancies. The fishtail effect is thus caused by oxygen vacancies.

本文言語	English
ページ（範囲）	805-806
ページ数	2
ジャーナル	Superconductor Science and Technology
巻	13
号	6
DOI	https://doi.org/10.1088/0953-2048/13/6/336
出版ステータス	Published - 2000 6月 1
外部発表	はい
イベント	The 2nd International Workshop on the Processing and Applications of Superconducting (RE)CBO Large Grain Materials - Morioka, Jpn 継続期間: 1999 10月 19 → 1999 10月 22

ASJC Scopus subject areas

セラミックおよび複合材料
凝縮系物理学
金属および合金
電子工学および電気工学
材料化学

文献へのアクセス

10.1088/0953-2048/13/6/336

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引用スタイル

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abstract = "Superconducting transitions were measured in field-cooled cooling and field-cooled warming modes in external magnetic fields ranging between 1 mT and 7 T on YBa2Cu3Ox (Y123) single crystals with and without the fishtail effect. The Y123 crystal with the fishtail effect exhibited a two-step transition when being cooled in high fields, while the Y123 crystal without the fishtail showed a single step transition. Furthermore, an upturn in magnetic moment was observed at lower temperatures for Y123 with the fishtail effect. Such an upturn is ascribed to the local Cu magnetic moment due to oxygen vacancies. The fishtail effect is thus caused by oxygen vacancies.",

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AB - Superconducting transitions were measured in field-cooled cooling and field-cooled warming modes in external magnetic fields ranging between 1 mT and 7 T on YBa2Cu3Ox (Y123) single crystals with and without the fishtail effect. The Y123 crystal with the fishtail effect exhibited a two-step transition when being cooled in high fields, while the Y123 crystal without the fishtail showed a single step transition. Furthermore, an upturn in magnetic moment was observed at lower temperatures for Y123 with the fishtail effect. Such an upturn is ascribed to the local Cu magnetic moment due to oxygen vacancies. The fishtail effect is thus caused by oxygen vacancies.

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