Superconducting properties of YBa 2Cu 3O 7-δ films deposited on commercial tape substrates, decorated with Pd or Ta nano-islands

Ö Polat; M. Ertuǧrul; J. R. Thompson; K. J. Leonard; J. W. Sinclair; M. P. Paranthaman; S. H. Wee; Y. L. Zuev; X. Xiong; V. Selvamanickam; D. K. Christen; T. Aytuǧ

doi:10.1088/0953-2048/25/2/025018

Superconducting properties of YBa ₂Cu ₃O _7-δ films deposited on commercial tape substrates, decorated with Pd or Ta nano-islands

Ö Polat, M. Ertuǧrul, J. R. Thompson, K. J. Leonard, J. W. Sinclair, M. P. Paranthaman, S. H. Wee, Y. L. Zuev, X. Xiong, V. Selvamanickam, D. K. Christen, T. Aytuǧ

Nanomaterials Chemistry Group

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

16 Scopus citations

Abstract

To obtain an engineered surface for deposition of high-T _c superconductors, nanoscale modulations of the surface of the underlying LaMnO ₃ (LMO) cap layer is a potential source for generating microstructural defects in YBa ₂Cu ₃O _7-δ (YBCO) films. These defects may improve the flux pinning and consequently increase the critical current density, J _c. To provide such nanoscale modulation via a practical and scalable process, palladium (Pd) or tantalum (Ta) nano-islands were deposited using dc-magnetron sputtering on the surface of the cap layer of commercial metal tape templates for second-generation wires. The size and density of these nano-islands can be controlled by changing sputtering conditions such as the power and deposition time. Compared to the reference sample grown on an untreated LMO cap layer, the YBCO films grown on the LMO cap layers with Pd or Ta nano-islands exhibited improved in-field J _c performance. Atomic force microscopy and transmission electron microscopy were used to assess the evolving size and density of the nano-islands.

Original language	English
Article number	025018
Journal	Superconductor Science and Technology
Volume	25
Issue number	2
DOIs	https://doi.org/10.1088/0953-2048/25/2/025018
State	Published - Feb 2012

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Polat, Ö., Ertuǧrul, M., Thompson, J. R., Leonard, K. J., Sinclair, J. W., Paranthaman, M. P., Wee, S. H., Zuev, Y. L., Xiong, X., Selvamanickam, V., Christen, D. K., & Aytuǧ, T. (2012). Superconducting properties of YBa ₂Cu ₃O _7-δ films deposited on commercial tape substrates, decorated with Pd or Ta nano-islands. Superconductor Science and Technology, 25(2), Article 025018. https://doi.org/10.1088/0953-2048/25/2/025018

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title = "Superconducting properties of YBa 2Cu 3O 7-δ films deposited on commercial tape substrates, decorated with Pd or Ta nano-islands",

abstract = "To obtain an engineered surface for deposition of high-T c superconductors, nanoscale modulations of the surface of the underlying LaMnO 3 (LMO) cap layer is a potential source for generating microstructural defects in YBa 2Cu 3O 7-δ (YBCO) films. These defects may improve the flux pinning and consequently increase the critical current density, J c. To provide such nanoscale modulation via a practical and scalable process, palladium (Pd) or tantalum (Ta) nano-islands were deposited using dc-magnetron sputtering on the surface of the cap layer of commercial metal tape templates for second-generation wires. The size and density of these nano-islands can be controlled by changing sputtering conditions such as the power and deposition time. Compared to the reference sample grown on an untreated LMO cap layer, the YBCO films grown on the LMO cap layers with Pd or Ta nano-islands exhibited improved in-field J c performance. Atomic force microscopy and transmission electron microscopy were used to assess the evolving size and density of the nano-islands.",

author = "{\"O} Polat and M. Ertuǧrul and Thompson, {J. R.} and Leonard, {K. J.} and Sinclair, {J. W.} and Paranthaman, {M. P.} and Wee, {S. H.} and Zuev, {Y. L.} and X. Xiong and V. Selvamanickam and Christen, {D. K.} and T. Aytuǧ",

year = "2012",

month = feb,

doi = "10.1088/0953-2048/25/2/025018",

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Polat, Ö, Ertuǧrul, M, Thompson, JR, Leonard, KJ, Sinclair, JW, Paranthaman, MP, Wee, SH, Zuev, YL, Xiong, X, Selvamanickam, V, Christen, DK & Aytuǧ, T 2012, 'Superconducting properties of YBa ₂Cu ₃O _7-δ films deposited on commercial tape substrates, decorated with Pd or Ta nano-islands', Superconductor Science and Technology, vol. 25, no. 2, 025018. https://doi.org/10.1088/0953-2048/25/2/025018

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AU - Polat, Ö

AU - Ertuǧrul, M.

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AU - Leonard, K. J.

AU - Sinclair, J. W.

AU - Paranthaman, M. P.

AU - Wee, S. H.

AU - Zuev, Y. L.

AU - Xiong, X.

AU - Selvamanickam, V.

AU - Christen, D. K.

AU - Aytuǧ, T.

PY - 2012/2

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N2 - To obtain an engineered surface for deposition of high-T c superconductors, nanoscale modulations of the surface of the underlying LaMnO 3 (LMO) cap layer is a potential source for generating microstructural defects in YBa 2Cu 3O 7-δ (YBCO) films. These defects may improve the flux pinning and consequently increase the critical current density, J c. To provide such nanoscale modulation via a practical and scalable process, palladium (Pd) or tantalum (Ta) nano-islands were deposited using dc-magnetron sputtering on the surface of the cap layer of commercial metal tape templates for second-generation wires. The size and density of these nano-islands can be controlled by changing sputtering conditions such as the power and deposition time. Compared to the reference sample grown on an untreated LMO cap layer, the YBCO films grown on the LMO cap layers with Pd or Ta nano-islands exhibited improved in-field J c performance. Atomic force microscopy and transmission electron microscopy were used to assess the evolving size and density of the nano-islands.

AB - To obtain an engineered surface for deposition of high-T c superconductors, nanoscale modulations of the surface of the underlying LaMnO 3 (LMO) cap layer is a potential source for generating microstructural defects in YBa 2Cu 3O 7-δ (YBCO) films. These defects may improve the flux pinning and consequently increase the critical current density, J c. To provide such nanoscale modulation via a practical and scalable process, palladium (Pd) or tantalum (Ta) nano-islands were deposited using dc-magnetron sputtering on the surface of the cap layer of commercial metal tape templates for second-generation wires. The size and density of these nano-islands can be controlled by changing sputtering conditions such as the power and deposition time. Compared to the reference sample grown on an untreated LMO cap layer, the YBCO films grown on the LMO cap layers with Pd or Ta nano-islands exhibited improved in-field J c performance. Atomic force microscopy and transmission electron microscopy were used to assess the evolving size and density of the nano-islands.

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ER -

Superconducting properties of YBa ₂Cu ₃O _7-δ films deposited on commercial tape substrates, decorated with Pd or Ta nano-islands

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