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

doi:10.1016/S0921-4534(00)00266-5

Evidence for linking an oxygen pairing process and superconductivity in YBa₂Cu₃O_7-δ between 86 and 130 K

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

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Ultrasonic studies at 85 kHz about the T_c region of melt-textured YBa₂Cu₃O_7-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 T_c 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 T_c region, lowering the T_c of Y123 ultrasonically at high strain amplitudes, enhancing superconductivity at low ultrasonic strain amplitudes in the T_c transition, oxygen pairing up to 130 K.

Original language	English
Pages (from-to)	229-236
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	334
Issue number	3
DOIs	https://doi.org/10.1016/S0921-4534(00)00266-5
Publication status	Published - 2000 Jun 15
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/S0921-4534(00)00266-5

Cite this

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abstract = "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.",

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AU - Russell, G. J.

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Evidence for linking an oxygen pairing process and superconductivity in YBa₂Cu₃O_7-δ between 86 and 130 K

Abstract

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