Magnetic AC loss of a mono-Sr0.6K0.4Fe2As2 tape/Ag in perpendicular field

Qi Liu, Guomin Zhang, Hui Yu, Miaomiao Huang, Weijia Yuan

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The magnetic AC losses of monofilament Sr0.6K0.4Fe2As2/Ag tapes are measured in the temperature range between 20 K and 30 K both in perpendicular and parallel field. The loss, measured by the standard magnetization technique, is determined from the area of the hysteresis loop using a vibrating sample magnetometer (VSM) in a cyclic field of amplitude up to 7 T. The results in perpendicular field are compared to that of the parallel-field loss and theoretical calculation of magnetization loss at various temperatures. There is a reasonable agreement between the theoretical model and the experimental results even in high field. The magnetic critical current density ( Jc) of the tape, obtained by the magnetic hysteresis measurements M(H), are investigated in two field directions and in the temperature range from 5 K to 30 K. The comparison between the magnetic Jc in both field directions and the transport Jc of the tape are also done at various temperatures and fields. The anisotropy of Jc (Γ=Jc ab/Jc c) is very small.

Original languageEnglish
Pages (from-to)103-106
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume531
DOIs
Publication statusPublished - 15 Dec 2016

Keywords

  • In perpendicular field
  • Iron-based superconductor
  • Magnetic AC loss

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