Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa2 Cu3 O7-δ films

Sung Hun Wee; Amit Goyal; Eliot D. Specht; Claudia Cantoni; Yuri L. Zuev; V. Selvamanickam; Sy Cook

doi:10.1103/PhysRevB.81.140503

Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa₂ Cu₃ O_7-δ films

Sung Hun Wee
, Amit Goyal
, Eliot D. Specht
, Claudia Cantoni
, Yuri L. Zuev
, V. Selvamanickam
, Sy Cook

Department of Chemical and Biological Engineering

Oak Ridge National Laboratory
University of Tennessee
University of Tennessee
University of Houston

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

64 Scopus citations

Abstract

We report rare-earth barium tantalates, Ba₂RETaO₆ (BRETO, RE=rare earth elements) as promising pinning additives for superior flux pinning in YBa₂ Cu₃O_7-δ (YBCO) films. BRETO compounds have excellent chemical inertness to and large lattice mismatch with YBCO. This results in phase separation and strain minimization driven self-assembly of BRETO nanocolumns within YBCO films. YBCO+4 vol % Ba ₂GdTaO₆ films show similar T_c to that of an undoped film of ∼88.3 K, a higher self-field J_c of 3.8 MA/cm ² at 77 K, and improved in-field J_c higher by a factor of 1.5-6 over entire magnetic field and angular ranges.

Original language	English
Article number	140503
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.81.140503
State	Published - Apr 16 2010

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10.1103/PhysRevB.81.140503

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Wee, S. H., Goyal, A., Specht, E. D., Cantoni, C., Zuev, Y. L., Selvamanickam, V., & Cook, S. (2010). Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa₂ Cu₃ O_7-δ films. Physical Review B - Condensed Matter and Materials Physics, 81(14), Article 140503. https://doi.org/10.1103/PhysRevB.81.140503

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title = "Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa2 Cu3 O7-δ films",

abstract = "We report rare-earth barium tantalates, Ba2RETaO6 (BRETO, RE=rare earth elements) as promising pinning additives for superior flux pinning in YBa2 Cu3O7-δ (YBCO) films. BRETO compounds have excellent chemical inertness to and large lattice mismatch with YBCO. This results in phase separation and strain minimization driven self-assembly of BRETO nanocolumns within YBCO films. YBCO+4 vol \% Ba 2GdTaO6 films show similar Tc to that of an undoped film of ∼88.3 K, a higher self-field Jc of 3.8 MA/cm 2 at 77 K, and improved in-field Jc higher by a factor of 1.5-6 over entire magnetic field and angular ranges.",

author = "Wee, \{Sung Hun\} and Amit Goyal and Specht, \{Eliot D.\} and Claudia Cantoni and Zuev, \{Yuri L.\} and V. Selvamanickam and Sy Cook",

year = "2010",

month = apr,

day = "16",

doi = "10.1103/PhysRevB.81.140503",

language = "English",

volume = "81",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

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Wee, SH, Goyal, A, Specht, ED, Cantoni, C, Zuev, YL, Selvamanickam, V & Cook, S 2010, 'Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa₂ Cu₃ O_7-δ films', Physical Review B - Condensed Matter and Materials Physics, vol. 81, no. 14, 140503. https://doi.org/10.1103/PhysRevB.81.140503

Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa₂ Cu₃ O_7-δ films. / Wee, Sung Hun; Goyal, Amit; Specht, Eliot D. et al.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 81, No. 14, 140503, 16.04.2010.

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

TY - JOUR

T1 - Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa2 Cu3 O7-δ films

AU - Wee, Sung Hun

AU - Goyal, Amit

AU - Specht, Eliot D.

AU - Cantoni, Claudia

AU - Zuev, Yuri L.

AU - Selvamanickam, V.

AU - Cook, Sy

PY - 2010/4/16

Y1 - 2010/4/16

N2 - We report rare-earth barium tantalates, Ba2RETaO6 (BRETO, RE=rare earth elements) as promising pinning additives for superior flux pinning in YBa2 Cu3O7-δ (YBCO) films. BRETO compounds have excellent chemical inertness to and large lattice mismatch with YBCO. This results in phase separation and strain minimization driven self-assembly of BRETO nanocolumns within YBCO films. YBCO+4 vol % Ba 2GdTaO6 films show similar Tc to that of an undoped film of ∼88.3 K, a higher self-field Jc of 3.8 MA/cm 2 at 77 K, and improved in-field Jc higher by a factor of 1.5-6 over entire magnetic field and angular ranges.

AB - We report rare-earth barium tantalates, Ba2RETaO6 (BRETO, RE=rare earth elements) as promising pinning additives for superior flux pinning in YBa2 Cu3O7-δ (YBCO) films. BRETO compounds have excellent chemical inertness to and large lattice mismatch with YBCO. This results in phase separation and strain minimization driven self-assembly of BRETO nanocolumns within YBCO films. YBCO+4 vol % Ba 2GdTaO6 films show similar Tc to that of an undoped film of ∼88.3 K, a higher self-field Jc of 3.8 MA/cm 2 at 77 K, and improved in-field Jc higher by a factor of 1.5-6 over entire magnetic field and angular ranges.

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DO - 10.1103/PhysRevB.81.140503

M3 - Article

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SN - 1098-0121

VL - 81

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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M1 - 140503

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Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa₂ Cu₃ O_7-δ films

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