Evidence for linking an oxygen pairing process and superconductivity in YBa2Cu3O7-δ between 86 and 130 K

A. R. Anderson, M. Murakami, G. J. Russell

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Ultrasonic studies at 85 kHz about the Tc region of melt-textured YBa2Cu3O7-δ (Y123) yielded details of strain amplitude dependent (SAD) and time dependent phenomena. This has provided strong evidence for an oxygen pairing process associated with a structural change, which was evident for temperatures below Tc up to 130 K. This pairing process has been linked, through a variety of experiments, to superconductivity and has provided evidence for the pseudogap phenomenon as well as a possible mechanism for channeling the superconducting carriers. The experiments included an enhanced oxygen related ultrasonic breakaway process in the Tc region, lowering the Tc of Y123 ultrasonically at high strain amplitudes, enhancing superconductivity at low ultrasonic strain amplitudes in the Tc transition, oxygen pairing up to 130 K.

本文言語English
ページ(範囲)229-236
ページ数8
ジャーナルPhysica C: Superconductivity and its applications
334
3
DOI
出版ステータスPublished - 2000 6 15
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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