Effects of particle irradiations on vortex states in iron-based superconductors

Tsuyoshi Tamegai, Toshihiro Taen, Hidenori Yagyuda, Yuji Tsuchiya, Shyam Mohan, Tomotaka Taniguchi, Yasuyuki Nakajima, Satoru Okayasu, Masato Sasase, Hisashi Kitamura, Takeshi Murakami, Tadashi Kambara, Yasuyuki Kanai

Research output: Contribution to journalArticlepeer-review

85 Citations (Scopus)


Various kinds of energetic particles are irradiated into iron-based superconductors, and their effects on the critical current density (J c) and vortex dynamics have been systematically studied. It is found that J c is enhanced and vortex dynamics is strongly suppressed by energetic particles having a sufficient energy deposition rate, similar to the case of high temperature cuprate superconductors. The enhancement of J c, in general, persists up to much higher irradiation doses than in cuprates. However, details of the effect of irradiation depend on the kind of ion species and their energies. Even with the same ions and energies, the effect is not universal for different kinds of iron-based superconductors. The correlated nature of defects created by heavy-ion irradiation is confirmed by the angular dependence of irreversible magnetization.

Original languageEnglish
Article number084008
JournalSuperconductor Science and Technology
Issue number8
Publication statusPublished - 2012 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry


Dive into the research topics of 'Effects of particle irradiations on vortex states in iron-based superconductors'. Together they form a unique fingerprint.

Cite this