Scanning tunneling microscopy studies of high Jc NEG123 crystals

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

Research output: Contribution to journalArticle

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
Externally publishedYes

Fingerprint

nanostructure (characteristics)
Ultrahigh vacuum
Scanning tunneling microscopy
ultrahigh vacuum
scanning tunneling microscopy
Nanostructures
Substitution reactions
Modulation
substitutes
Oxygen
modulation
Crystals
room temperature
oxygen
crystals
Temperature

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Scanning tunneling microscopy studies of high Jc NEG123 crystals. / Nishiyama, Masato; Miryala, Muralidhar; Sakai, Naomichi; Ogawa, Keiichi; Koshizuka, Naoki; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 388-389, 05.2003, p. 297-298.

Research output: Contribution to journalArticle

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