Magneto-optical imaging of transport currents in YBa2Cu3O7-x on RABiTS™

D. Matthew Feldmann; Jodi L. Reeves; Anatollii A. Polyanskii; Amit Goyal; Ron Feenstra; D. F. Lee; M. Paranthaman; D. M. Kroeger; D. K. Christen; Sue E. Babcock; David C. Larbalestier

doi:10.1109/77.919885

Magneto-optical imaging of transport currents in YBa₂Cu₃O_7-x on RABiTS™

D. Matthew Feldmann
, Jodi L. Reeves
, Anatollii A. Polyanskii
, Amit Goyal
, Ron Feenstra
, D. F. Lee
, M. Paranthaman
, D. M. Kroeger
, D. K. Christen
, Sue E. Babcock
, David C. Larbalestier

Nanomaterials Chemistry Group

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

22 Scopus citations

Abstract

Two YBa₂Cu₃O_7-x (YBCO) on RABiTS™ conductors with high J_c(0 T,77 K) values of 2.3 and 2.4 MA/cm² were scribed by laser cutting to constrict supercurrent flow. On one of these tracks, magneto-optical (MO) imaging of the self-field produced by a transport current directly demonstrates the percolative nature of the current flow. Using Backscattered Electron Kikuchi Pattern (BEKP) analysis, we have found that Ni grain boundaries (GBs) > 5° generally introduce GBs in the YBCO that have lower J_c values than the intra-grain.

Original language	English
Pages (from-to)	3772-3775
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	11
Issue number	1 III
DOIs	https://doi.org/10.1109/77.919885
State	Published - Mar 2001
Event	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: Sep 17 2000 → Sep 22 2000

Funding

Manuscript received September 16, 2000. This work was supported by the Air Force Oftice of Scientific Research Grant No. F49620-00-1-0091, D.M . Feldmann, J. L. Reeves, A. A. Polyanskii, S. E. Babcock and D. C. Larbalestier are at the Applied Superconductivity Center, University of Wisconsin - Madison, Madison, WI 53706 USA (e-mail: [email protected]) A. Goyal, R. Feenstra, D. F. Lee, M. Paranthaman, D. M. Kroeger, and D. K. Christen are at Oak Ridge National Laboratory, Oak Ridge, TN 37831 (e-mail:[email protected])

Keywords

Coated conductors
Grain boundaries
Magneto-optical imaging
RABiTS

Access to Document

10.1109/77.919885

Cite this

@article{c1f5e5cc5cfd49859c30a735e394ac3f,

title = "Magneto-optical imaging of transport currents in YBa2Cu3O7-x on RABiTS{\texttrademark}",

abstract = "Two YBa2Cu3O7-x (YBCO) on RABiTS{\texttrademark} conductors with high Jc(0 T,77 K) values of 2.3 and 2.4 MA/cm2 were scribed by laser cutting to constrict supercurrent flow. On one of these tracks, magneto-optical (MO) imaging of the self-field produced by a transport current directly demonstrates the percolative nature of the current flow. Using Backscattered Electron Kikuchi Pattern (BEKP) analysis, we have found that Ni grain boundaries (GBs) > 5° generally introduce GBs in the YBCO that have lower Jc values than the intra-grain.",

keywords = "Coated conductors, Grain boundaries, Magneto-optical imaging, RABiTS",

author = "Feldmann, \{D. Matthew\} and Reeves, \{Jodi L.\} and Polyanskii, \{Anatollii A.\} and Amit Goyal and Ron Feenstra and Lee, \{D. F.\} and M. Paranthaman and Kroeger, \{D. M.\} and Christen, \{D. K.\} and Babcock, \{Sue E.\} and Larbalestier, \{David C.\}",

year = "2001",

month = mar,

doi = "10.1109/77.919885",

language = "English",

volume = "11",

pages = "3772--3775",

journal = "IEEE Transactions on Applied Superconductivity",

issn = "1051-8223",

publisher = "Institute of Electrical and Electronics Engineers",

number = "1 III",

note = "2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",

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TY - JOUR

T1 - Magneto-optical imaging of transport currents in YBa2Cu3O7-x on RABiTS™

AU - Feldmann, D. Matthew

AU - Reeves, Jodi L.

AU - Polyanskii, Anatollii A.

AU - Goyal, Amit

AU - Feenstra, Ron

AU - Lee, D. F.

AU - Paranthaman, M.

AU - Kroeger, D. M.

AU - Christen, D. K.

AU - Babcock, Sue E.

AU - Larbalestier, David C.

PY - 2001/3

Y1 - 2001/3

N2 - Two YBa2Cu3O7-x (YBCO) on RABiTS™ conductors with high Jc(0 T,77 K) values of 2.3 and 2.4 MA/cm2 were scribed by laser cutting to constrict supercurrent flow. On one of these tracks, magneto-optical (MO) imaging of the self-field produced by a transport current directly demonstrates the percolative nature of the current flow. Using Backscattered Electron Kikuchi Pattern (BEKP) analysis, we have found that Ni grain boundaries (GBs) > 5° generally introduce GBs in the YBCO that have lower Jc values than the intra-grain.

AB - Two YBa2Cu3O7-x (YBCO) on RABiTS™ conductors with high Jc(0 T,77 K) values of 2.3 and 2.4 MA/cm2 were scribed by laser cutting to constrict supercurrent flow. On one of these tracks, magneto-optical (MO) imaging of the self-field produced by a transport current directly demonstrates the percolative nature of the current flow. Using Backscattered Electron Kikuchi Pattern (BEKP) analysis, we have found that Ni grain boundaries (GBs) > 5° generally introduce GBs in the YBCO that have lower Jc values than the intra-grain.

KW - Coated conductors

KW - Grain boundaries

KW - Magneto-optical imaging

KW - RABiTS

UR - https://www.scopus.com/pages/publications/17844375112

U2 - 10.1109/77.919885

DO - 10.1109/77.919885

M3 - Conference article

AN - SCOPUS:17844375112

SN - 1051-8223

VL - 11

SP - 3772

EP - 3775

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 -