In situ high rate growth of high temperature superconductor tapes

Luke S.J. Peng; Weizhi Wang; William Jo; Tsuyoshi Ohnishi; Ann F. Marshall; Robert H. Hammond; Malcolm R. Beasley; Eric J. Peterson; Richard E. Ericson

doi:10.1109/77.919786

In situ high rate growth of high temperature superconductor tapes

Luke S.J. Peng, Weizhi Wang, William Jo, Tsuyoshi Ohnishi, Ann F. Marshall, Robert H. Hammond, Malcolm R. Beasley, Eric J. Peterson, Richard E. Ericson

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

19 Scopus citations

Abstract

In situ high rate growth of YBa₂Cu₃O_7-δ superconducting films has been carried out using e-beam deposition. A deposition flux controller was developed to monitor and control the deposition rates using tunable diode, laser-based, atomic absorption. A wide range of temperatures, deposition rates, and oxygen fluxes including atomic, molecular oxygen, have been explored in order to understand both kinetic and thermodynamic stability. Critical current density above 1 MA/cm² has been achieved on SrTiO₃ substrate samples with growth rates up to 75 Å/sec. Samples prepared on IBAD YSZ/Ni tapes exhibit similar resistivity properties and x-ray diffraction patterns. However, critical current densities of the tapes are around 5 kA/cm² or lower. The poor critical current density of the tape is attributed to interactions between the YBa₂Cu₃O_7-δ film and the YSZ buffer layer.

Original language	English
Pages (from-to)	3375-3378
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	11
Issue number	1 III
DOIs	https://doi.org/10.1109/77.919786
State	Published - Mar 2001
Event	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 17 Sep 2000 → 22 Sep 2000

Bibliographical note

Funding Information:
The authors would like to thank M. Brostrom and C. Hamilton in 3M Corp. for XRD, SIMS, and composition analysis. Thanks to R. Feenstra in ORNL for useful discussions. Thanks also to P. Arendt and J. Coulter in LANL for providing IBAD YSZ tapes and helping Jc measurements. This project is supported by DOE and 3M Corp.

Funding Information:
This work was supported in part by the US. Department of Energy under Grant No. LMER 19X-TA478C. Luke S.-J. Peng was with the Stanford University, Stanford, CA 94305 USA. He is now with the Conductus Inc., 969 W. Maude Ave. Sunnyvale, CA 94086 USA (telephone: 408-523-9498, e-mail: lpeng @conductus.com). Weizhi Wang was with the Stanford University, Stanford, CA 94305 USA. He is now with the New Focus Inc., 2630 Walsh Ave. Santa Clara, CA 9505 1 USA. William Jo, Tsuyoshi Ohnishi, Ann F. Marshall, Robert H. Hammond, and Malcolm R. Beasley are with the Stanford University, Stanford, CA 94305 USA. Eric J. Peterson is with the Los Alamos National Laboratory, Los Alamos, NM 87545 USA. Richard E. Ericson is with the 3M Corp, St. Paul, MN 55144 USA

Keywords

Critical current
E-beam deposition
IBAD
In situ growth
Phase stability
YBCO superconductor tapes

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title = "In situ high rate growth of high temperature superconductor tapes",

abstract = "In situ high rate growth of YBa2Cu3O7-δ superconducting films has been carried out using e-beam deposition. A deposition flux controller was developed to monitor and control the deposition rates using tunable diode, laser-based, atomic absorption. A wide range of temperatures, deposition rates, and oxygen fluxes including atomic, molecular oxygen, have been explored in order to understand both kinetic and thermodynamic stability. Critical current density above 1 MA/cm2 has been achieved on SrTiO3 substrate samples with growth rates up to 75 {\AA}/sec. Samples prepared on IBAD YSZ/Ni tapes exhibit similar resistivity properties and x-ray diffraction patterns. However, critical current densities of the tapes are around 5 kA/cm2 or lower. The poor critical current density of the tape is attributed to interactions between the YBa2Cu3O7-δ film and the YSZ buffer layer.",

keywords = "Critical current, E-beam deposition, IBAD, In situ growth, Phase stability, YBCO superconductor tapes",

author = "Peng, {Luke S.J.} and Weizhi Wang and William Jo and Tsuyoshi Ohnishi and Marshall, {Ann F.} and Hammond, {Robert H.} and Beasley, {Malcolm R.} and Peterson, {Eric J.} and Ericson, {Richard E.}",

note = "Funding Information: The authors would like to thank M. Brostrom and C. Hamilton in 3M Corp. for XRD, SIMS, and composition analysis. Thanks to R. Feenstra in ORNL for useful discussions. Thanks also to P. Arendt and J. Coulter in LANL for providing IBAD YSZ tapes and helping Jc measurements. This project is supported by DOE and 3M Corp. Funding Information: This work was supported in part by the US. Department of Energy under Grant No. LMER 19X-TA478C. Luke S.-J. Peng was with the Stanford University, Stanford, CA 94305 USA. He is now with the Conductus Inc., 969 W. Maude Ave. Sunnyvale, CA 94086 USA (telephone: 408-523-9498, e-mail: lpeng @conductus.com). Weizhi Wang was with the Stanford University, Stanford, CA 94305 USA. He is now with the New Focus Inc., 2630 Walsh Ave. Santa Clara, CA 9505 1 USA. William Jo, Tsuyoshi Ohnishi, Ann F. Marshall, Robert H. Hammond, and Malcolm R. Beasley are with the Stanford University, Stanford, CA 94305 USA. Eric J. Peterson is with the Los Alamos National Laboratory, Los Alamos, NM 87545 USA. Richard E. Ericson is with the 3M Corp, St. Paul, MN 55144 USA; 2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",

year = "2001",

month = mar,

doi = "10.1109/77.919786",

language = "English",

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number = "1 III",

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AU - Peng, Luke S.J.

AU - Wang, Weizhi

AU - Jo, William

AU - Ohnishi, Tsuyoshi

AU - Marshall, Ann F.

AU - Hammond, Robert H.

AU - Beasley, Malcolm R.

AU - Peterson, Eric J.

AU - Ericson, Richard E.

N1 - Funding Information: The authors would like to thank M. Brostrom and C. Hamilton in 3M Corp. for XRD, SIMS, and composition analysis. Thanks to R. Feenstra in ORNL for useful discussions. Thanks also to P. Arendt and J. Coulter in LANL for providing IBAD YSZ tapes and helping Jc measurements. This project is supported by DOE and 3M Corp. Funding Information: This work was supported in part by the US. Department of Energy under Grant No. LMER 19X-TA478C. Luke S.-J. Peng was with the Stanford University, Stanford, CA 94305 USA. He is now with the Conductus Inc., 969 W. Maude Ave. Sunnyvale, CA 94086 USA (telephone: 408-523-9498, e-mail: lpeng @conductus.com). Weizhi Wang was with the Stanford University, Stanford, CA 94305 USA. He is now with the New Focus Inc., 2630 Walsh Ave. Santa Clara, CA 9505 1 USA. William Jo, Tsuyoshi Ohnishi, Ann F. Marshall, Robert H. Hammond, and Malcolm R. Beasley are with the Stanford University, Stanford, CA 94305 USA. Eric J. Peterson is with the Los Alamos National Laboratory, Los Alamos, NM 87545 USA. Richard E. Ericson is with the 3M Corp, St. Paul, MN 55144 USA

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N2 - In situ high rate growth of YBa2Cu3O7-δ superconducting films has been carried out using e-beam deposition. A deposition flux controller was developed to monitor and control the deposition rates using tunable diode, laser-based, atomic absorption. A wide range of temperatures, deposition rates, and oxygen fluxes including atomic, molecular oxygen, have been explored in order to understand both kinetic and thermodynamic stability. Critical current density above 1 MA/cm2 has been achieved on SrTiO3 substrate samples with growth rates up to 75 Å/sec. Samples prepared on IBAD YSZ/Ni tapes exhibit similar resistivity properties and x-ray diffraction patterns. However, critical current densities of the tapes are around 5 kA/cm2 or lower. The poor critical current density of the tape is attributed to interactions between the YBa2Cu3O7-δ film and the YSZ buffer layer.

AB - In situ high rate growth of YBa2Cu3O7-δ superconducting films has been carried out using e-beam deposition. A deposition flux controller was developed to monitor and control the deposition rates using tunable diode, laser-based, atomic absorption. A wide range of temperatures, deposition rates, and oxygen fluxes including atomic, molecular oxygen, have been explored in order to understand both kinetic and thermodynamic stability. Critical current density above 1 MA/cm2 has been achieved on SrTiO3 substrate samples with growth rates up to 75 Å/sec. Samples prepared on IBAD YSZ/Ni tapes exhibit similar resistivity properties and x-ray diffraction patterns. However, critical current densities of the tapes are around 5 kA/cm2 or lower. The poor critical current density of the tape is attributed to interactions between the YBa2Cu3O7-δ film and the YSZ buffer layer.

KW - Critical current

KW - E-beam deposition

KW - IBAD

KW - In situ growth

KW - Phase stability

KW - YBCO superconductor tapes

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DO - 10.1109/77.919786

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AN - SCOPUS:0035269138

SN - 1051-8223

VL - 11

SP - 3375

EP - 3378

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 1 III

T2 - 2000 Applied Superconductivity Conference

Y2 - 17 September 2000 through 22 September 2000

ER -

In situ high rate growth of high temperature superconductor tapes

Abstract

Bibliographical note

Keywords

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