High magnetic field transport properties of (Nd, Eu, Gd)Ba2Cu3Ox bulk

Satoshi Awaji, Nobuyuki Isono, Kazuo Watanabe, Muralidhar Miryala, Masato Murakami, Naomi Koshizuka, Koshichi Noto

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

(Nd, Eu, Gd) Ba2Cu3Ox (NEG123) bulk shows high irreversibility fields over 14 T at 77.3 K. In order to study the origin of the high irreversibility field, transport measurements for NEG123 bulk were performed as functions of temperature, high magnetic fields (up to 27 T) and field angle. We found that c-axis correlated disorder exists for samples with 3 and 40 mol% NEG211, although their irreversibility fields are different. The enhancements of the irreversibility fields at 77.3 K due to the c-axis correlated disorder are almost the same (about 1 T) for both samples and are in agreement with that of Y 123 bulk with a twin boundary. The partially entangled vortex liquid and the Bose glass phases, which are induced by the c-axis correlated disorder, play an important role in the improvement of the irreversibility field. However, in order to explain the much higher irreversibility field, we should take account not only of the c-axis correlated disorder but also of the other pinning centres such as the nanolamella.

Original languageEnglish
JournalSuperconductor Science and Technology
Volume17
Issue number2
DOIs
Publication statusPublished - 2004 Feb

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Transport properties
Vortex flow
transport properties
disorders
Magnetic fields
Glass
Liquids
magnetic fields
Temperature
vortices
augmentation
glass
liquids

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

High magnetic field transport properties of (Nd, Eu, Gd)Ba2Cu3Ox bulk. / Awaji, Satoshi; Isono, Nobuyuki; Watanabe, Kazuo; Miryala, Muralidhar; Murakami, Masato; Koshizuka, Naomi; Noto, Koshichi.

In: Superconductor Science and Technology, Vol. 17, No. 2, 02.2004.

Research output: Contribution to journalArticle

Awaji, Satoshi ; Isono, Nobuyuki ; Watanabe, Kazuo ; Miryala, Muralidhar ; Murakami, Masato ; Koshizuka, Naomi ; Noto, Koshichi. / High magnetic field transport properties of (Nd, Eu, Gd)Ba2Cu3Ox bulk. In: Superconductor Science and Technology. 2004 ; Vol. 17, No. 2.
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