Scanning tunneling microscopy studies of high Jc NEG123 crystals

Masato Nishiyama, Miryala Muralidhar, Naomichi Sakai, Keiichi Ogawa, Naoki Koshizuka, Masato Murakami

Research output: Contribution to journalConference article

Abstract

We have performed ultrahigh vacuum scanning tunneling microscopy measurements at room temperature on (Nd0.33Eu0.38Gd0.28)Ba2Cu3 Oy (NEG123) crystals grown by an oxygen controlled melt growth process. Two characteristic nanostructures, namely, modulation and island structures have been observed on a cleaved surface of the NEG123 with high Jc and high irreversible field Hirr higher than 10 T at 77 K. These structures may be associated with an element substitution and the good Jc-B property.

Original languageEnglish
Pages (from-to)297-298
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume388-389
DOIs
Publication statusPublished - 2003 May 1
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27

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Keywords

  • High-T superconductor
  • Modulation structure
  • Scanning tunneling microscopy
  • Substitution effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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