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Phase diagram of a high-temperature superconductor in the Bi2Sr2CuOy system

✍ Scribed by Ryozo Yoshizaki; Hiroshi Ikeda; Li-Xin Chen; Masahiro Akamatsu

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 349 KB
Volume: 224
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)90613-0

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✦ Synopsis

The resistive transition of the superconductivity was measured for Bi2Sr2CuOy (Bi-2201 ) single crystals with maximal Tc in the configuration of H//c-axis. We observed the breaking of bulk superconductivity due to the external magnetic field at 1.6 K. The superconducting phase boundary was obtained from the irreversibility line defined by the zero-resistance temperature, and the full diagram of the superconductivity was determined in the H-T plane. We estimated the fluctuation superconductivity region whose onset boundary was located far from the bulk superconductivity.

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