Phase stability of cubic pyrochlore rare earth tantalate pinning additives in YBa 2Cu 3O 7-δ superconductor

Sung Hun Wee; Claudia Cantoni; Yuri L. Zuev; Eliot D. Specht; Amit Goyal

doi:10.1111/j.1551-2916.2012.05084.x

Phase stability of cubic pyrochlore rare earth tantalate pinning additives in YBa ₂Cu ₃O _7-δ superconductor

Sung Hun Wee
, Claudia Cantoni
, Yuri L. Zuev
, Eliot D. Specht
, Amit Goyal

Department of Chemical and Biological Engineering

Oak Ridge National Laboratory
University of Tennessee

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

5 Scopus citations

Abstract

Phase stability of cubic-pyrochlore-structured RE ₃TaO ₇ (RTO, where RE = rare earth elements) pinning additives in YBa ₂Cu ₃O _7-δ (YBCO) superconductor and the pinning properties influenced by RTO addition into YBCO films were investigated. RTO completely reacts with YBCO and is converted to cubic-double-perovskite- structured Ba ₂RETaO ₆ (BRETO), a more thermodynamically stable tantalate phase within YBCO. In RTO-doped YBCO films, BRETO self-assembled nanocolumns align along the c-axis of the film and play a major role in the improvement of flux pinning and J _c performance over wide magnetic field and angular ranges.

Original language	English
Pages (from-to)	1174-1177
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	95
Issue number	4
DOIs	https://doi.org/10.1111/j.1551-2916.2012.05084.x
State	Published - Apr 2012

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title = "Phase stability of cubic pyrochlore rare earth tantalate pinning additives in YBa 2Cu 3O 7-δ superconductor",

abstract = "Phase stability of cubic-pyrochlore-structured RE 3TaO 7 (RTO, where RE = rare earth elements) pinning additives in YBa 2Cu 3O 7-δ (YBCO) superconductor and the pinning properties influenced by RTO addition into YBCO films were investigated. RTO completely reacts with YBCO and is converted to cubic-double-perovskite- structured Ba 2RETaO 6 (BRETO), a more thermodynamically stable tantalate phase within YBCO. In RTO-doped YBCO films, BRETO self-assembled nanocolumns align along the c-axis of the film and play a major role in the improvement of flux pinning and J c performance over wide magnetic field and angular ranges.",

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

year = "2012",

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doi = "10.1111/j.1551-2916.2012.05084.x",

language = "English",

volume = "95",

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journal = "Journal of the American Ceramic Society",

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T1 - Phase stability of cubic pyrochlore rare earth tantalate pinning additives in YBa 2Cu 3O 7-δ superconductor

AU - Wee, Sung Hun

AU - Cantoni, Claudia

AU - Zuev, Yuri L.

AU - Specht, Eliot D.

AU - Goyal, Amit

PY - 2012/4

Y1 - 2012/4

N2 - Phase stability of cubic-pyrochlore-structured RE 3TaO 7 (RTO, where RE = rare earth elements) pinning additives in YBa 2Cu 3O 7-δ (YBCO) superconductor and the pinning properties influenced by RTO addition into YBCO films were investigated. RTO completely reacts with YBCO and is converted to cubic-double-perovskite- structured Ba 2RETaO 6 (BRETO), a more thermodynamically stable tantalate phase within YBCO. In RTO-doped YBCO films, BRETO self-assembled nanocolumns align along the c-axis of the film and play a major role in the improvement of flux pinning and J c performance over wide magnetic field and angular ranges.

AB - Phase stability of cubic-pyrochlore-structured RE 3TaO 7 (RTO, where RE = rare earth elements) pinning additives in YBa 2Cu 3O 7-δ (YBCO) superconductor and the pinning properties influenced by RTO addition into YBCO films were investigated. RTO completely reacts with YBCO and is converted to cubic-double-perovskite- structured Ba 2RETaO 6 (BRETO), a more thermodynamically stable tantalate phase within YBCO. In RTO-doped YBCO films, BRETO self-assembled nanocolumns align along the c-axis of the film and play a major role in the improvement of flux pinning and J c performance over wide magnetic field and angular ranges.

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M3 - Article

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VL - 95

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ER -

Phase stability of cubic pyrochlore rare earth tantalate pinning additives in YBa ₂Cu ₃O _7-δ superconductor

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