Intrinsic Josephson junctions in Y1Ba2Cu3Ox single-crystal whiskers grown using Te-doped precursors

Single-crystal whiskers of Y1Ba2Cu3Ox with a length of about 5mm were grown from a Te-doped precursor. The optimum nominal composition of the precursors was Y2Ba3Cu3Te0.5Ox. From the energy-dispersive x-ray spectroscopy measurement, Te was not detected in the whiskers. The current-voltage (I-V) char...

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Published inJournal of applied physics Vol. 98; no. 7
Main Authors Nagao, Masanori, Kawae, Takeshi, Yun, KyungSung, Wang, Huabing, Takano, Yoshihiko, Hatano, Takeshi, Yamashita, Tsutomu, Tachiki, Masashi, Maeda, Hiroshi, Sato, Mitsunori
Format Journal Article
LanguageEnglish
Published 01.10.2005
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Summary:Single-crystal whiskers of Y1Ba2Cu3Ox with a length of about 5mm were grown from a Te-doped precursor. The optimum nominal composition of the precursors was Y2Ba3Cu3Te0.5Ox. From the energy-dispersive x-ray spectroscopy measurement, Te was not detected in the whiskers. The current-voltage (I-V) characteristics along the c axis of an annealed in vacuum whisker exhibit a clear multibranched structure and a hysteresis curve corresponding to intrinsic Josephson junctions.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2064312