Characteristic H-T boundaries and dissipation in YBa2Cu3O7-δ crystals

M. M. Miller; M. S. Osofsky; R. J. Soulen; S. A. Wolf; J. L. Cohn; E. F. Skelton; T. A. Vanderah

doi:10.1016/0921-4534(91)91239-Z

Characteristic H-T boundaries and dissipation in YBa₂Cu₃O_7-δ crystals

M. M. Miller, M. S. Osofsky, R. J. Soulen, S. A. Wolf, J. L. Cohn, E. F. Skelton, T. A. Vanderah

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

Abstract

Characteristic H-T boundaries of a YBa₂Cu₃O_7-δ crystal were determined form V(I) measurements for 0≤H≤6T with H∥ab and H∥c. These boundaries have the form H∼(T_c-T)^x where x can be consistent with predictions of the vortex-glass model. However, such a temperature dependence is also consistent with an alternate, granular superconductor model. Furthermore, magnetization and resistivity measurements suggest that a granular, percolating superconductor model is more appropriate than the vortex-glass model.

Original language	English (US)
Pages (from-to)	2229-2230
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(91)91239-Z
State	Published - Dec 1 1991
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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abstract = "Characteristic H-T boundaries of a YBa2Cu3O7-δ crystal were determined form V(I) measurements for 0≤H≤6T with H∥ab and H∥c. These boundaries have the form H∼(Tc-T)x where x can be consistent with predictions of the vortex-glass model. However, such a temperature dependence is also consistent with an alternate, granular superconductor model. Furthermore, magnetization and resistivity measurements suggest that a granular, percolating superconductor model is more appropriate than the vortex-glass model.",

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AU - Osofsky, M. S.

AU - Soulen, R. J.

AU - Wolf, S. A.

AU - Cohn, J. L.

AU - Skelton, E. F.

AU - Vanderah, T. A.

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N2 - Characteristic H-T boundaries of a YBa2Cu3O7-δ crystal were determined form V(I) measurements for 0≤H≤6T with H∥ab and H∥c. These boundaries have the form H∼(Tc-T)x where x can be consistent with predictions of the vortex-glass model. However, such a temperature dependence is also consistent with an alternate, granular superconductor model. Furthermore, magnetization and resistivity measurements suggest that a granular, percolating superconductor model is more appropriate than the vortex-glass model.

AB - Characteristic H-T boundaries of a YBa2Cu3O7-δ crystal were determined form V(I) measurements for 0≤H≤6T with H∥ab and H∥c. These boundaries have the form H∼(Tc-T)x where x can be consistent with predictions of the vortex-glass model. However, such a temperature dependence is also consistent with an alternate, granular superconductor model. Furthermore, magnetization and resistivity measurements suggest that a granular, percolating superconductor model is more appropriate than the vortex-glass model.

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Characteristic H-T boundaries and dissipation in YBa₂Cu₃O_7-δ crystals

Abstract

ASJC Scopus subject areas

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