Preparation and characterization of homogeneous YBCO single crystals with doping level near the SC-AFM boundary

R. Liang; D. A. Bonn; W. N. Hardy; J. C. Wynn; K. A. Moler; L. Lu; S. Larochelle; L. Zhou; M. Greven; L. Lurio; S. G.J. Mochrie

doi:10.1016/S0921-4534(02)01269-8

Preparation and characterization of homogeneous YBCO single crystals with doping level near the SC-AFM boundary

R. Liang, D. A. Bonn, W. N. Hardy, J. C. Wynn, K. A. Moler, L. Lu, S. Larochelle, L. Zhou, M. Greven, L. Lurio, S. G.J. Mochrie

Physics and Astronomy (Twin Cities)

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

31 Scopus citations

Abstract

High-purity and homogeneous YBa₂Cu₃O_y single crystals with carrier doping level near the AFM-SC boundary have been obtained in the oxygen content range between y = 6.340 and 6.370. The crystals are ortho-II phase at room temperature and undergo the orthorhombic to tetragonal transition at about 140 °C. They show sharp superconducting transitions, with T_c between 4 and 20 K. T_c changes by 0.8 K when the oxygen content y is changed by 0.001, and is also sensitive to annealing conditions near room temperature, due to the dependence of doping on oxygen ordering correlation lengths. Crystals with oxygen content y lower than 6.345 are non-superconducting.

Original language	English (US)
Pages (from-to)	1-7
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	383
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-4534(02)01269-8
State	Published - Dec 1 2002

Bibliographical note

Funding Information:
The Stanford University X-ray group was supported by US Department of Energy under contract nos. DE-FG03-99ER45773 and DE-AC03-76SF00515, and by NSF CAREER Award no. DMR-9985067. Beamline 8-ID at the Advanced Photon Source is supported by the US Department of Energy via Grant DE-FG02-96ER45593.

Keywords

Low doping
Ortho-II phase
Preparation
SC-AFM boundary
YBCO

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Liang, R., Bonn, D. A., Hardy, W. N., Wynn, J. C., Moler, K. A., Lu, L., Larochelle, S., Zhou, L., Greven, M., Lurio, L., & Mochrie, S. G. J. (2002). Preparation and characterization of homogeneous YBCO single crystals with doping level near the SC-AFM boundary. Physica C: Superconductivity and its applications, 383(1-2), 1-7. https://doi.org/10.1016/S0921-4534(02)01269-8

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abstract = "High-purity and homogeneous YBa2Cu3Oy single crystals with carrier doping level near the AFM-SC boundary have been obtained in the oxygen content range between y = 6.340 and 6.370. The crystals are ortho-II phase at room temperature and undergo the orthorhombic to tetragonal transition at about 140 °C. They show sharp superconducting transitions, with Tc between 4 and 20 K. Tc changes by 0.8 K when the oxygen content y is changed by 0.001, and is also sensitive to annealing conditions near room temperature, due to the dependence of doping on oxygen ordering correlation lengths. Crystals with oxygen content y lower than 6.345 are non-superconducting.",

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AU - Lu, L.

AU - Larochelle, S.

AU - Zhou, L.

AU - Greven, M.

AU - Lurio, L.

AU - Mochrie, S. G.J.

N1 - Funding Information: The Stanford University X-ray group was supported by US Department of Energy under contract nos. DE-FG03-99ER45773 and DE-AC03-76SF00515, and by NSF CAREER Award no. DMR-9985067. Beamline 8-ID at the Advanced Photon Source is supported by the US Department of Energy via Grant DE-FG02-96ER45593.

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N2 - High-purity and homogeneous YBa2Cu3Oy single crystals with carrier doping level near the AFM-SC boundary have been obtained in the oxygen content range between y = 6.340 and 6.370. The crystals are ortho-II phase at room temperature and undergo the orthorhombic to tetragonal transition at about 140 °C. They show sharp superconducting transitions, with Tc between 4 and 20 K. Tc changes by 0.8 K when the oxygen content y is changed by 0.001, and is also sensitive to annealing conditions near room temperature, due to the dependence of doping on oxygen ordering correlation lengths. Crystals with oxygen content y lower than 6.345 are non-superconducting.

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Preparation and characterization of homogeneous YBCO single crystals with doping level near the SC-AFM boundary

Abstract

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Keywords

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