Local structural study of commercial grade MBa2Cu3O7-x (M = Y and/or Gd) coated conductors by polarized raman spectroscopy

Hankyoul Moon, Hae Young Shin, Hye Jin Jin, William Jo, Seokhyun Yoon

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In 1987, M. K. Wu and Paul Chu discovered Y1.2Ba0.8CuO4 (YBCO) with critical temperature (Tc) of 93 K. It has significantly lowered the cost of cooling of a material up to the point where superconductivity set in. Utilizing the cost reduction of attaining superconductivity and the vast amount of research to understand characteristics of high temperature oxide superconducting materials, there has been effort to use a high temperature superconductor as a coated conductor. It is important to characterize the materials precisely for stable performance before commercializing. We used polarized Raman scattering spectroscopy to study structural and stoichiometric information regarding YBa2Cu3O7-x, GdYBa2Cu3O7-x, and GdBa2Cu3O7-x produced by three leading groups of producing commercial grade high temperature superconductor coated conductors American Superconductor Corporation, Superpower, and SuNAM.

Original languageEnglish
Pages (from-to)25-29
Number of pages5
JournalProgress in Superconductivity and Cryogenics (PSAC)
Volume17
Issue number4
DOIs
StatePublished - Dec 2015

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) with grants funded by the Korea government (MSIP) (2013 R1A1A2007951 and 2014R1A2A2A01004070) and by the Korea Electrotechnology Research Institute (KERI) primary research program through the National Research Council of Science & Technology (NST) funded by the Ministry of Science, ICT and Future Planning (MSIP) (No. 15-12-N0101-34).

Publisher Copyright:
© 2013 PSAC. All rights reserved.

Keywords

  • Commercial-grade coated conductors
  • Microstructure
  • Polarized raman spectroscopy

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